38631020 has 24 divisors (see below), whose sum is σ = 83105568. Its totient is φ = 15075200.

The previous prime is 38630981. The next prime is 38631031. The reversal of 38631020 is 2013683.

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, 22736 + ... + 24375.

It is an arithmetic number, because the mean of its divisors is an integer number (3462732).

Almost surely, 2^38631020 is an apocalyptic number.

It is an amenable number.

38631020 is an abundant number, since it is smaller than the sum of its proper divisors (44474548).

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

38631020 is a wasteful number, since it uses less digits than its factorization.

38631020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47161 (or 47159 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 38631020 is about 6215.3857482863. The cubic root of 38631020 is about 338.0482757277.

The spelling of 38631020 in words is "thirty-eight million, six hundred thirty-one thousand, twenty".