363968638 has 16 divisors (see below), whose sum is σ = 601728624. Its totient is φ = 163733760.

The previous prime is 363968621. The next prime is 363968677. The reversal of 363968638 is 836869363.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83145 + ... + 87412.

It is an arithmetic number, because the mean of its divisors is an integer number (37608039).

Almost surely, 2^363968638 is an apocalyptic number.

363968638 is a deficient number, since it is larger than the sum of its proper divisors (237759986).

363968638 is a wasteful number, since it uses less digits than its factorization.

363968638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170667.

The product of its digits is 3359232, while the sum is 52.

The square root of 363968638 is about 19077.9621029082. The cubic root of 363968638 is about 713.9831915739.

The spelling of 363968638 in words is "three hundred sixty-three million, nine hundred sixty-eight thousand, six hundred thirty-eight".