440987904 has 216 divisors, whose sum is σ = 1494409280. Its totient is φ = 122425344.

The previous prime is 440987879. The next prime is 440987959. The reversal of 440987904 is 409789044.

It is a self number, because there is not a number n which added to its sum of digits gives 440987904.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 596367 + ... + 597105.

Almost surely, 2^440987904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 440987904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (747204640).

440987904 is an abundant number, since it is smaller than the sum of its proper divisors (1053421376).

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

440987904 is a wasteful number, since it uses less digits than its factorization.

440987904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 805 (or 788 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 440987904 is about 20999.7119980251. The cubic root of 440987904 is about 761.1593018040.

The spelling of 440987904 in words is "four hundred forty million, nine hundred eighty-seven thousand, nine hundred four".