645030952 has 32 divisors (see below), whose sum is σ = 1283428800. Its totient is φ = 303259264.

The previous prime is 645030913. The next prime is 645030959. The reversal of 645030952 is 259030546.

It is not an unprimeable number, because it can be changed into a prime (645030959) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18853 + ... + 40564.

It is an arithmetic number, because the mean of its divisors is an integer number (40107150).

Almost surely, 2^645030952 is an apocalyptic number.

It is an amenable number.

645030952 is a deficient number, since it is larger than the sum of its proper divisors (638397848).

645030952 is a wasteful number, since it uses less digits than its factorization.

645030952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59505 (or 59501 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 34.

The square root of 645030952 is about 25397.4595579952. The cubic root of 645030952 is about 864.0260801741.

The spelling of 645030952 in words is "six hundred forty-five million, thirty thousand, nine hundred fifty-two".