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1404442 = 213192843
BaseRepresentation
bin101010110111000011010
32122100112101
411112320122
5324420232
650034014
714636404
oct5267032
92570471
101404442
1187a1a6
1257890a
133a2340
14287b74
151cb1e7
hex156e1a

1404442 has 16 divisors (see below), whose sum is σ = 2388960. Its totient is φ = 613872.

The previous prime is 1404439. The next prime is 1404467. The reversal of 1404442 is 2444041.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 928 + ... + 1915.

It is an arithmetic number, because the mean of its divisors is an integer number (149310).

21404442 is an apocalyptic number.

1404442 is a deficient number, since it is larger than the sum of its proper divisors (984518).

1404442 is a wasteful number, since it uses less digits than its factorization.

1404442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2877.

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 1404442 is about 1185.0915576444. The cubic root of 1404442 is about 111.9870839697.

Adding to 1404442 its reverse (2444041), we get a palindrome (3848483).

The spelling of 1404442 in words is "one million, four hundred four thousand, four hundred forty-two".

Divisors: 1 2 13 19 26 38 247 494 2843 5686 36959 54017 73918 108034 702221 1404442