394088360556 has 96 divisors (see below), whose sum is σ = 1072658764800. Its totient is φ = 111283072000.

The previous prime is 394088360531. The next prime is 394088360563. The reversal of 394088360556 is 655063880493.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 394088360496 and 394088360505.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 642756 + ... + 1096043.

It is an arithmetic number, because the mean of its divisors is an integer number (11173528800).

Almost surely, 2^394088360556 is an apocalyptic number.

It is an amenable number.

394088360556 is an abundant number, since it is smaller than the sum of its proper divisors (678570404244).

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

394088360556 is a wasteful number, since it uses less digits than its factorization.

394088360556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1738935 (or 1738933 counting only the distinct ones).

The product of its (nonzero) digits is 18662400, while the sum is 57.

The spelling of 394088360556 in words is "three hundred ninety-four billion, eighty-eight million, three hundred sixty thousand, five hundred fifty-six".