386894644 has 24 divisors (see below), whose sum is σ = 731968160. Its totient is φ = 178311456.

The previous prime is 386894633. The next prime is 386894657. The reversal of 386894644 is 446498683.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 386894591 and 386894600.

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, 65982 + ... + 71605.

Almost surely, 2^386894644 is an apocalyptic number.

It is an amenable number.

386894644 is a deficient number, since it is larger than the sum of its proper divisors (345073516).

386894644 is a wasteful number, since it uses less digits than its factorization.

386894644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137647 (or 137645 counting only the distinct ones).

The product of its digits is 3981312, while the sum is 52.

The square root of 386894644 is about 19669.6376174041. The cubic root of 386894644 is about 728.6700272849.

The spelling of 386894644 in words is "three hundred eighty-six million, eight hundred ninety-four thousand, six hundred forty-four".