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1404414440 = 2351113245527
BaseRepresentation
bin101001110110101…
…1010100111101000
310121212122122102122
41103231122213220
510334012230230
6351205250412
746542216512
oct12355324750
93555578378
101404414440
116608343a0
12332403a08
13194c65b80
14d4740bb2
1583467be5
hex53b5a9e8

1404414440 has 64 divisors (see below), whose sum is σ = 3712383360. Its totient is φ = 471409920.

The previous prime is 1404414419. The next prime is 1404414457. The reversal of 1404414440 is 444144041.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117044 + ... + 128483.

It is an arithmetic number, because the mean of its divisors is an integer number (58005990).

Almost surely, 21404414440 is an apocalyptic number.

1404414440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1404414440 is an abundant number, since it is smaller than the sum of its proper divisors (2307968920).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1404414440 is a wasteful number, since it uses less digits than its factorization.

1404414440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245562 (or 245558 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 26.

The square root of 1404414440 is about 37475.5178750074. The cubic root of 1404414440 is about 1119.8635144057.

Adding to 1404414440 its reverse (444144041), we get a palindrome (1848558481).

The spelling of 1404414440 in words is "one billion, four hundred four million, four hundred fourteen thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 11 13 20 22 26 40 44 52 55 65 88 104 110 130 143 220 260 286 440 520 572 715 1144 1430 2860 5720 245527 491054 982108 1227635 1964216 2455270 2700797 3191851 4910540 5401594 6383702 9821080 10803188 12767404 13503985 15959255 21606376 25534808 27007970 31918510 35110361 54015940 63837020 70220722 108031880 127674040 140441444 175551805 280882888 351103610 702207220 1404414440