445039056 has 320 divisors, whose sum is σ = 1688463360. Its totient is φ = 108656640.

The previous prime is 445039037. The next prime is 445039057. The reversal of 445039056 is 650930544.

It is a happy number.

It is a super-2 number, since 2×445039056² = 396119522730742272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 445039056.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445039057) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 565095 + ... + 565881.

It is an arithmetic number, because the mean of its divisors is an integer number (5276448).

Almost surely, 2^445039056 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 445039056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (844231680).

445039056 is an abundant number, since it is smaller than the sum of its proper divisors (1243424304).

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

445039056 is a wasteful number, since it uses less digits than its factorization.

445039056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 839 (or 827 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The square root of 445039056 is about 21095.9488053986. The cubic root of 445039056 is about 763.4830068666.

The spelling of 445039056 in words is "four hundred forty-five million, thirty-nine thousand, fifty-six".