445478790 has 64 divisors (see below), whose sum is σ = 1083580416. Its totient is φ = 117203712.

The previous prime is 445478741. The next prime is 445478819. The reversal of 445478790 is 97874544.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1162939 + ... + 1163321.

It is an arithmetic number, because the mean of its divisors is an integer number (16930944).

Almost surely, 2^445478790 is an apocalyptic number.

445478790 is an abundant number, since it is smaller than the sum of its proper divisors (638101626).

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

445478790 is a wasteful number, since it uses less digits than its factorization.

445478790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 813.

The product of its (nonzero) digits is 1128960, while the sum is 48.

The square root of 445478790 is about 21106.3684702035. The cubic root of 445478790 is about 763.7343847452.

The spelling of 445478790 in words is "four hundred forty-five million, four hundred seventy-eight thousand, seven hundred ninety".