45638408 has 8 divisors (see below), whose sum is σ = 85572030. Its totient is φ = 22819200.

The previous prime is 45638407. The next prime is 45638429. The reversal of 45638408 is 80483654.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 26646244 + 18992164 = 5162^2 + 4358^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (45638401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2852393 + ... + 2852408.

Almost surely, 2^45638408 is an apocalyptic number.

It is an amenable number.

45638408 is a deficient number, since it is larger than the sum of its proper divisors (39933622).

45638408 is a wasteful number, since it uses less digits than its factorization.

45638408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5704807 (or 5704803 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 38.

The square root of 45638408 is about 6755.6204748343. The cubic root of 45638408 is about 357.3634746920.

The spelling of 45638408 in words is "forty-five million, six hundred thirty-eight thousand, four hundred eight".