388630994 has 16 divisors (see below), whose sum is σ = 594311040. Its totient is φ = 190543920.

The previous prime is 388630987. The next prime is 388631003. The reversal of 388630994 is 499036883.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45767 + ... + 53589.

It is an arithmetic number, because the mean of its divisors is an integer number (37144440).

Almost surely, 2^388630994 is an apocalyptic number.

388630994 is a deficient number, since it is larger than the sum of its proper divisors (205680046).

388630994 is a wasteful number, since it uses less digits than its factorization.

388630994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8305.

The product of its (nonzero) digits is 1119744, while the sum is 50.

The square root of 388630994 is about 19713.7260303576. The cubic root of 388630994 is about 729.7584701675.

The spelling of 388630994 in words is "three hundred eighty-eight million, six hundred thirty thousand, nine hundred ninety-four".