38400680 has 16 divisors (see below), whose sum is σ = 86401620. Its totient is φ = 15360256.

The previous prime is 38400679. The next prime is 38400737. The reversal of 38400680 is 8600483.

It can be written as a sum of positive squares in 2 ways, for example, as 36457444 + 1943236 = 6038^2 + 1394^2 .

It is a super-2 number, since 2×38400680² = 2949224448924800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 479969 + ... + 480048.

Almost surely, 2^38400680 is an apocalyptic number.

It is an amenable number.

38400680 is an abundant number, since it is smaller than the sum of its proper divisors (48000940).

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

38400680 is a wasteful number, since it uses less digits than its factorization.

38400680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 960028 (or 960024 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 38400680 is about 6196.8282209530. The cubic root of 38400680 is about 337.3750575472.

The spelling of 38400680 in words is "thirty-eight million, four hundred thousand, six hundred eighty".