386655984 has 240 divisors, whose sum is σ = 1316061600. Its totient is φ = 107965440.

The previous prime is 386655937. The next prime is 386656009. The reversal of 386655984 is 489556683.

It is a happy number.

386655984 is a `hidden beast` number, since 3 + 8 + 6 + 6 + 559 + 84 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 386655984.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 679252 + ... + 679820.

It is an arithmetic number, because the mean of its divisors is an integer number (5483590).

Almost surely, 2^386655984 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 386655984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (658030800).

386655984 is an abundant number, since it is smaller than the sum of its proper divisors (929405616).

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

386655984 is a wasteful number, since it uses less digits than its factorization.

386655984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621 (or 598 counting only the distinct ones).

The product of its digits is 6220800, while the sum is 54.

The square root of 386655984 is about 19663.5699708878. The cubic root of 386655984 is about 728.5201672288.

The spelling of 386655984 in words is "three hundred eighty-six million, six hundred fifty-five thousand, nine hundred eighty-four".