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440044040 = 23522748463
BaseRepresentation
bin11010001110101…
…000101000001000
31010200000112221102
4122032220220020
51400122402130
6111355400532
713622212142
oct3216505010
91120015842
10440044040
11206436667
12103453148
13702221b7
1442629c92
1528973645
hex1a3a8a08

440044040 has 32 divisors (see below), whose sum is σ = 994481280. Its totient is φ = 175238592.

The previous prime is 440044037. The next prime is 440044051. The reversal of 440044040 is 40440044.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 15152 + ... + 33311.

It is an arithmetic number, because the mean of its divisors is an integer number (31077540).

Almost surely, 2440044040 is an apocalyptic number.

440044040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

440044040 is an abundant number, since it is smaller than the sum of its proper divisors (554437240).

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

440044040 is a wasteful number, since it uses less digits than its factorization.

440044040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48701 (or 48697 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 440044040 is about 20977.2266994472. The cubic root of 440044040 is about 760.6158673703.

Adding to 440044040 its reverse (40440044), we get a palindrome (480484084).

The spelling of 440044040 in words is "four hundred forty million, forty-four thousand, forty".

Divisors: 1 2 4 5 8 10 20 40 227 454 908 1135 1816 2270 4540 9080 48463 96926 193852 242315 387704 484630 969260 1938520 11001101 22002202 44004404 55005505 88008808 110011010 220022020 440044040