390338492999 has 16 divisors (see below), whose sum is σ = 488559267840. Its totient is φ = 303604679520.

The previous prime is 390338492977. The next prime is 390338493049. The reversal of 390338492999 is 999294833093.

It is a cyclic number.

It is not a de Polignac number, because 390338492999 - 2²⁸ = 390070057543 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390338492909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36345767 + ... + 36356504.

It is an arithmetic number, because the mean of its divisors is an integer number (30534954240).

Almost surely, 2^390338492999 is an apocalyptic number.

390338492999 is a deficient number, since it is larger than the sum of its proper divisors (98220774841).

390338492999 is a wasteful number, since it uses less digits than its factorization.

390338492999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72702350.

The product of its (nonzero) digits is 102036672, while the sum is 68.

The spelling of 390338492999 in words is "three hundred ninety billion, three hundred thirty-eight million, four hundred ninety-two thousand, nine hundred ninety-nine".