386721374 has 8 divisors (see below), whose sum is σ = 624703800. Its totient is φ = 178486776.

The previous prime is 386721331. The next prime is 386721397. The reversal of 386721374 is 473127683.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×386721374² = 299106842216895752, 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 3 ways as a sum of consecutive naturals, for example, 7436924 + ... + 7436975.

It is an arithmetic number, because the mean of its divisors is an integer number (78087975).

Almost surely, 2^386721374 is an apocalyptic number.

386721374 is a deficient number, since it is larger than the sum of its proper divisors (237982426).

386721374 is a wasteful number, since it uses less digits than its factorization.

386721374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14873914.

The product of its digits is 169344, while the sum is 41.

The square root of 386721374 is about 19665.2326200327. The cubic root of 386721374 is about 728.5612332328.

The spelling of 386721374 in words is "three hundred eighty-six million, seven hundred twenty-one thousand, three hundred seventy-four".