386938816 has 56 divisors (see below), whose sum is σ = 840516480. Its totient is φ = 175276800.

The previous prime is 386938801. The next prime is 386938837. The reversal of 386938816 is 618839683.

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, 251971 + ... + 253501.

Almost surely, 2^386938816 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 386938816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (420258240).

386938816 is an abundant number, since it is smaller than the sum of its proper divisors (453577664).

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

386938816 is a wasteful number, since it uses less digits than its factorization.

386938816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1913 (or 1903 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 52.

The square root of 386938816 is about 19670.7604326828. The cubic root of 386938816 is about 728.6977571317.

The spelling of 386938816 in words is "three hundred eighty-six million, nine hundred thirty-eight thousand, eight hundred sixteen".