388776006 has 24 divisors (see below), whose sum is σ = 844860744. Its totient is φ = 129205440.

The previous prime is 388775993. The next prime is 388776071. The reversal of 388776006 is 600677883.

388776006 is a `hidden beast` number, since 38 + 8 + 7 + 7 + 600 + 6 = 666.

It is a super-2 number, since 2×388776006² = 302293565682624072, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25980 + ... + 38111.

It is an arithmetic number, because the mean of its divisors is an integer number (35202531).

Almost surely, 2^388776006 is an apocalyptic number.

388776006 is an abundant number, since it is smaller than the sum of its proper divisors (456084738).

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

388776006 is a wasteful number, since it uses less digits than its factorization.

388776006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64436 (or 64433 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The square root of 388776006 is about 19717.4036323244. The cubic root of 388776006 is about 729.8492251317.

The spelling of 388776006 in words is "three hundred eighty-eight million, seven hundred seventy-six thousand, six".