38889018 has 32 divisors (see below), whose sum is σ = 98766720. Its totient is φ = 11111040.

The previous prime is 38889017. The next prime is 38889023. The reversal of 38889018 is 81098883.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (38889017) 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, 51063 + ... + 51818.

It is an arithmetic number, because the mean of its divisors is an integer number (3086460).

Almost surely, 2^38889018 is an apocalyptic number.

38889018 is an abundant number, since it is smaller than the sum of its proper divisors (59877702).

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

38889018 is a wasteful number, since it uses less digits than its factorization.

38889018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102899 (or 102893 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 45.

The square root of 38889018 is about 6236.1059965334. The cubic root of 38889018 is about 338.7991605419.

The spelling of 38889018 in words is "thirty-eight million, eight hundred eighty-nine thousand, eighteen".