38613616 has 20 divisors (see below), whose sum is σ = 77394600. Its totient is φ = 18640832.

The previous prime is 38613599. The next prime is 38613661. The reversal of 38613616 is 61631683.

It is a happy number.

It is a super-2 number, since 2×38613616² = 2982022681190912, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41146 + ... + 42073.

It is an arithmetic number, because the mean of its divisors is an integer number (3869730).

Almost surely, 2^38613616 is an apocalyptic number.

It is an amenable number.

38613616 is an abundant number, since it is smaller than the sum of its proper divisors (38780984).

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

38613616 is a wasteful number, since it uses less digits than its factorization.

38613616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83256 (or 83250 counting only the distinct ones).

The product of its digits is 15552, while the sum is 34.

The square root of 38613616 is about 6213.9855165586. The cubic root of 38613616 is about 337.9975024033.

The spelling of 38613616 in words is "thirty-eight million, six hundred thirteen thousand, six hundred sixteen".