445640752 has 20 divisors (see below), whose sum is σ = 863757216. Its totient is φ = 222735680.

The previous prime is 445640749. The next prime is 445640761. The reversal of 445640752 is 257046544.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75177 + ... + 80887.

Almost surely, 2^445640752 is an apocalyptic number.

It is an amenable number.

445640752 is a deficient number, since it is larger than the sum of its proper divisors (418116464).

445640752 is a wasteful number, since it uses less digits than its factorization.

445640752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10596 (or 10590 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 37.

The square root of 445640752 is about 21110.2049255804. The cubic root of 445640752 is about 763.8269300872.

The spelling of 445640752 in words is "four hundred forty-five million, six hundred forty thousand, seven hundred fifty-two".