386490555 has 32 divisors (see below), whose sum is σ = 749560320. Its totient is φ = 187388640.

The previous prime is 386490523. The next prime is 386490581. The reversal of 386490555 is 555094683.

386490555 is a `hidden beast` number, since 3 + 8 + 6 + 4 + 90 + 555 = 666.

It is not a de Polignac number, because 386490555 - 2⁵ = 386490523 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 386490555.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 128647 + ... + 131616.

It is an arithmetic number, because the mean of its divisors is an integer number (23423760).

Almost surely, 2^386490555 is an apocalyptic number.

386490555 is a deficient number, since it is larger than the sum of its proper divisors (363069765).

386490555 is a wasteful number, since it uses less digits than its factorization.

386490555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260288 (or 260282 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 45.

The square root of 386490555 is about 19659.3630364770. The cubic root of 386490555 is about 728.4162543971.

The spelling of 386490555 in words is "three hundred eighty-six million, four hundred ninety thousand, five hundred fifty-five".