386889920 has 112 divisors (see below), whose sum is σ = 974189568. Its totient is φ = 146119680.

The previous prime is 386889917. The next prime is 386889953. The reversal of 386889920 is 29988683.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 426107 + ... + 427013.

Almost surely, 2^386889920 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 386889920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (487094784).

386889920 is an abundant number, since it is smaller than the sum of its proper divisors (587299648).

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

386889920 is a wasteful number, since it uses less digits than its factorization.

386889920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 998 (or 988 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 53.

The square root of 386889920 is about 19669.5175334831. The cubic root of 386889920 is about 728.6670615756.

The spelling of 386889920 in words is "three hundred eighty-six million, eight hundred eighty-nine thousand, nine hundred twenty".