38609916 has 24 divisors (see below), whose sum is σ = 94007424. Its totient is φ = 12310320.

The previous prime is 38609903. The next prime is 38609929. The reversal of 38609916 is 61990683.

It is an interprime number because it is at equal distance from previous prime (38609903) and next prime (38609929).

It is a super-2 number, since 2×38609916² = 2981451227054112, which contains 22 as substring.

It is a congruent number.

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, 69670 + ... + 70221.

It is an arithmetic number, because the mean of its divisors is an integer number (3916976).

Almost surely, 2^38609916 is an apocalyptic number.

It is an amenable number.

38609916 is an abundant number, since it is smaller than the sum of its proper divisors (55397508).

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

38609916 is a wasteful number, since it uses less digits than its factorization.

38609916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139921 (or 139919 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 42.

The square root of 38609916 is about 6213.6877938950. The cubic root of 38609916 is about 337.9867062918.

The spelling of 38609916 in words is "thirty-eight million, six hundred nine thousand, nine hundred sixteen".