386400392 has 32 divisors (see below), whose sum is σ = 830113920. Its totient is φ = 165177600.

The previous prime is 386400383. The next prime is 386400403. The reversal of 386400392 is 293004683.

It is a happy number.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13853 + ... + 31059.

It is an arithmetic number, because the mean of its divisors is an integer number (25941060).

Almost surely, 2^386400392 is an apocalyptic number.

It is an amenable number.

386400392 is an abundant number, since it is smaller than the sum of its proper divisors (443713528).

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

386400392 is a wasteful number, since it uses less digits than its factorization.

386400392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17621 (or 17617 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 386400392 is about 19657.0697714588. The cubic root of 386400392 is about 728.3596067838.

The spelling of 386400392 in words is "three hundred eighty-six million, four hundred thousand, three hundred ninety-two".