386972228 has 12 divisors (see below), whose sum is σ = 685361040. Its totient is φ = 191154792.

The previous prime is 386972213. The next prime is 386972251. The reversal of 386972228 is 822279683.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 582458 + ... + 583121.

It is an arithmetic number, because the mean of its divisors is an integer number (57113420).

Almost surely, 2^386972228 is an apocalyptic number.

It is an amenable number.

386972228 is a deficient number, since it is larger than the sum of its proper divisors (298388812).

386972228 is a wasteful number, since it uses less digits than its factorization.

386972228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1165666 (or 1165664 counting only the distinct ones).

The product of its digits is 580608, while the sum is 47.

The square root of 386972228 is about 19671.6096951927. The cubic root of 386972228 is about 728.7187307738.

The spelling of 386972228 in words is "three hundred eighty-six million, nine hundred seventy-two thousand, two hundred twenty-eight".