440764640 has 48 divisors (see below), whose sum is σ = 1086589728. Its totient is φ = 168638976.

The previous prime is 440764613. The next prime is 440764673. The reversal of 440764640 is 46467044.

It is a self number, because there is not a number n which added to its sum of digits gives 440764640.

It is a congruent number.

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, 56207 + ... + 63566.

It is an arithmetic number, because the mean of its divisors is an integer number (22637286).

Almost surely, 2^440764640 is an apocalyptic number.

440764640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

440764640 is an abundant number, since it is smaller than the sum of its proper divisors (645825088).

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

440764640 is a wasteful number, since it uses less digits than its factorization.

440764640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119811 (or 119803 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 35.

The square root of 440764640 is about 20994.3954425937. The cubic root of 440764640 is about 761.0308265057.

The spelling of 440764640 in words is "four hundred forty million, seven hundred sixty-four thousand, six hundred forty".