38618964 has 24 divisors (see below), whose sum is σ = 100123520. Its totient is φ = 12872952.

The previous prime is 38618953. The next prime is 38618977. The reversal of 38618964 is 46981683.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 178684 + ... + 178899.

Almost surely, 2^38618964 is an apocalyptic number.

It is an amenable number.

38618964 is an abundant number, since it is smaller than the sum of its proper divisors (61504556).

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

38618964 is a wasteful number, since it uses less digits than its factorization.

38618964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357596 (or 357588 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The square root of 38618964 is about 6214.4158212981. The cubic root of 38618964 is about 338.0131059423.

The spelling of 38618964 in words is "thirty-eight million, six hundred eighteen thousand, nine hundred sixty-four".