38916018 has 32 divisors (see below), whose sum is σ = 86685120. Its totient is φ = 12941280.

The previous prime is 38916013. The next prime is 38916019. The reversal of 38916018 is 81061983.

It is not an unprimeable number, because it can be changed into a prime (38916013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40621 + ... + 41567.

It is an arithmetic number, because the mean of its divisors is an integer number (2708910).

Almost surely, 2^38916018 is an apocalyptic number.

38916018 is an abundant number, since it is smaller than the sum of its proper divisors (47769102).

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

38916018 is a wasteful number, since it uses less digits than its factorization.

38916018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1719 (or 1713 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 38916018 is about 6238.2704333814. The cubic root of 38916018 is about 338.8775499486.

The spelling of 38916018 in words is "thirty-eight million, nine hundred sixteen thousand, eighteen".