394047192 has 64 divisors (see below), whose sum is σ = 1228204800. Its totient is φ = 102349440.

The previous prime is 394047163. The next prime is 394047197. The reversal of 394047192 is 291740493.

It is a self number, because there is not a number n which added to its sum of digits gives 394047192.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394047197) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104767 + ... + 108462.

It is an arithmetic number, because the mean of its divisors is an integer number (19190700).

Almost surely, 2^394047192 is an apocalyptic number.

It is an amenable number.

394047192 is an abundant number, since it is smaller than the sum of its proper divisors (834157608).

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

394047192 is a wasteful number, since it uses less digits than its factorization.

394047192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213256 (or 213252 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 394047192 is about 19850.6219549917. The cubic root of 394047192 is about 733.1329614181.

The spelling of 394047192 in words is "three hundred ninety-four million, forty-seven thousand, one hundred ninety-two".