394236428904 has 48 divisors (see below), whose sum is σ = 1067897001600. Its totient is φ = 131390808864.

The previous prime is 394236428891. The next prime is 394236428917. The reversal of 394236428904 is 409824632493.

It is an interprime number because it is at equal distance from previous prime (394236428891) and next prime (394236428917).

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 11 ways as a sum of consecutive naturals, for example, 5257 + ... + 887975.

It is an arithmetic number, because the mean of its divisors is an integer number (22247854200).

Almost surely, 2^394236428904 is an apocalyptic number.

It is an amenable number.

394236428904 is an abundant number, since it is smaller than the sum of its proper divisors (673660572696).

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

394236428904 is a wasteful number, since it uses less digits than its factorization.

394236428904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 888934 (or 888927 counting only the distinct ones).

The product of its (nonzero) digits is 8957952, while the sum is 54.

The spelling of 394236428904 in words is "three hundred ninety-four billion, two hundred thirty-six million, four hundred twenty-eight thousand, nine hundred four".