389904495402 has 8 divisors (see below), whose sum is σ = 779808990816. Its totient is φ = 129968165132.

The previous prime is 389904495391. The next prime is 389904495433. The reversal of 389904495402 is 204594409983.

It is a sphenic number, since it is the product of 3 distinct primes.

389904495402 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32492041278 + ... + 32492041289.

It is an arithmetic number, because the mean of its divisors is an integer number (97476123852).

Almost surely, 2^389904495402 is an apocalyptic number.

389904495402 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

389904495402 is a wasteful number, since it uses less digits than its factorization.

389904495402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64984082572.

The product of its (nonzero) digits is 11197440, while the sum is 57.

The spelling of 389904495402 in words is "three hundred eighty-nine billion, nine hundred four million, four hundred ninety-five thousand, four hundred two".