394480392 has 16 divisors (see below), whose sum is σ = 986201040. Its totient is φ = 131493456.

The previous prime is 394480391. The next prime is 394480397. The reversal of 394480392 is 293084493.

It is a happy number.

It is a super-2 number, since 2×394480392² = 311229559344947328, which contains 22 as substring.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (394480391) 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, 8218318 + ... + 8218365.

It is an arithmetic number, because the mean of its divisors is an integer number (61637565).

Almost surely, 2^394480392 is an apocalyptic number.

It is an amenable number.

394480392 is an abundant number, since it is smaller than the sum of its proper divisors (591720648).

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

394480392 is a wasteful number, since it uses less digits than its factorization.

394480392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16436692 (or 16436688 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 42.

The square root of 394480392 is about 19861.5304546251. The cubic root of 394480392 is about 733.4015222176.

The spelling of 394480392 in words is "three hundred ninety-four million, four hundred eighty thousand, three hundred ninety-two".