38667138 has 16 divisors (see below), whose sum is σ = 77470176. Its totient is φ = 12866400.

The previous prime is 38667113. The next prime is 38667149. The reversal of 38667138 is 83176683.

It is a super-2 number, since 2×38667138² = 2990295122222088, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 38667138.

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, 1756 + ... + 8967.

It is an arithmetic number, because the mean of its divisors is an integer number (4841886).

Almost surely, 2^38667138 is an apocalyptic number.

38667138 is an abundant number, since it is smaller than the sum of its proper divisors (38803038).

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

38667138 is a wasteful number, since it uses less digits than its factorization.

38667138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11329.

The product of its digits is 145152, while the sum is 42.

The square root of 38667138 is about 6218.2906011218. The cubic root of 38667138 is about 338.1535954464.

The spelling of 38667138 in words is "thirty-eight million, six hundred sixty-seven thousand, one hundred thirty-eight".