38680018 has 16 divisors (see below), whose sum is σ = 62752536. Its totient is φ = 17775360.

The previous prime is 38680007. The next prime is 38680021. The reversal of 38680018 is 81008683.

38680018 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 18636489 + 20043529 = 4317^2 + 4477^2 .

It is a super-2 number, since 2×38680018² = 2992287584960648, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3180 + ... + 9352.

Almost surely, 2^38680018 is an apocalyptic number.

38680018 is a deficient number, since it is larger than the sum of its proper divisors (24072518).

38680018 is a wasteful number, since it uses less digits than its factorization.

38680018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6429.

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 38680018 is about 6219.3261692888. The cubic root of 38680018 is about 338.1911375302.

The spelling of 38680018 in words is "thirty-eight million, six hundred eighty thousand, eighteen".