394432976 has 20 divisors (see below), whose sum is σ = 873387552. Its totient is φ = 169042656.

The previous prime is 394432967. The next prime is 394432979. The reversal of 394432976 is 679234493.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 394432976.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394432979) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1760750 + ... + 1760973.

Almost surely, 2^394432976 is an apocalyptic number.

It is an amenable number.

394432976 is an abundant number, since it is smaller than the sum of its proper divisors (478954576).

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

394432976 is a wasteful number, since it uses less digits than its factorization.

394432976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3521738 (or 3521732 counting only the distinct ones).

The product of its digits is 979776, while the sum is 47.

The square root of 394432976 is about 19860.3367544460. The cubic root of 394432976 is about 733.3721364224.

The spelling of 394432976 in words is "three hundred ninety-four million, four hundred thirty-two thousand, nine hundred seventy-six".