386728472 has 32 divisors (see below), whose sum is σ = 806090880. Its totient is φ = 172730880.

The previous prime is 386728429. The next prime is 386728487. The reversal of 386728472 is 274827683.

It is a super-2 number, since 2×386728472² = 299117822110909568, which contains 22 as substring.

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, 56753 + ... + 63200.

It is an arithmetic number, because the mean of its divisors is an integer number (25190340).

Almost surely, 2^386728472 is an apocalyptic number.

It is an amenable number.

386728472 is an abundant number, since it is smaller than the sum of its proper divisors (419362408).

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

386728472 is a wasteful number, since it uses less digits than its factorization.

386728472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120003 (or 119999 counting only the distinct ones).

The product of its digits is 903168, while the sum is 47.

The square root of 386728472 is about 19665.4130899913. The cubic root of 386728472 is about 728.5656906159.

The spelling of 386728472 in words is "three hundred eighty-six million, seven hundred twenty-eight thousand, four hundred seventy-two".