38686512 has 40 divisors (see below), whose sum is σ = 103168000. Its totient is φ = 12479040.

The previous prime is 38686507. The next prime is 38686513. The reversal of 38686512 is 21568683.

It is a happy number.

It is a super-2 number, since 2×38686512² = 2993292421452288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (38686513) 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, 11512 + ... + 14487.

It is an arithmetic number, because the mean of its divisors is an integer number (2579200).

Almost surely, 2^38686512 is an apocalyptic number.

It is an amenable number.

38686512 is an abundant number, since it is smaller than the sum of its proper divisors (64481488).

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

38686512 is a wasteful number, since it uses less digits than its factorization.

38686512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26041 (or 26035 counting only the distinct ones).

The product of its digits is 69120, while the sum is 39.

The square root of 38686512 is about 6219.8482296596. The cubic root of 38686512 is about 338.2100628088.

The spelling of 38686512 in words is "thirty-eight million, six hundred eighty-six thousand, five hundred twelve".