45638964 has 60 divisors (see below), whose sum is σ = 136360224. Its totient is φ = 13039056.

The previous prime is 45638951. The next prime is 45638981. The reversal of 45638964 is 46983654.

45638964 is a `hidden beast` number, since 4 + 5 + 638 + 9 + 6 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 7794 + ... + 12329.

Almost surely, 2^45638964 is an apocalyptic number.

It is an amenable number.

45638964 is an abundant number, since it is smaller than the sum of its proper divisors (90721260).

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

45638964 is a wasteful number, since it uses less digits than its factorization.

45638964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20146 (or 20135 counting only the distinct ones).

The product of its digits is 622080, while the sum is 45.

The square root of 45638964 is about 6755.6616256293. The cubic root of 45638964 is about 357.3649259059.

The spelling of 45638964 in words is "forty-five million, six hundred thirty-eight thousand, nine hundred sixty-four".