442790964 has 72 divisors (see below), whose sum is σ = 1395471168. Its totient is φ = 115009920.

The previous prime is 442790941. The next prime is 442790977. The reversal of 442790964 is 469097244.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 77097 + ... + 82640.

It is an arithmetic number, because the mean of its divisors is an integer number (19381544).

Almost surely, 2^442790964 is an apocalyptic number.

442790964 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

442790964 is an abundant number, since it is smaller than the sum of its proper divisors (952680204).

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

442790964 is a wasteful number, since it uses less digits than its factorization.

442790964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159765 (or 159760 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The square root of 442790964 is about 21042.5987938752. The cubic root of 442790964 is about 762.1952710127.

The spelling of 442790964 in words is "four hundred forty-two million, seven hundred ninety thousand, nine hundred sixty-four".