394407792 has 100 divisors (see below), whose sum is σ = 1178474176. Its totient is φ = 127215360.

The previous prime is 394407791. The next prime is 394407799. The reversal of 394407792 is 297704493.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394407791) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 35268 + ... + 45084.

Almost surely, 2^394407792 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 394407792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (589237088).

394407792 is an abundant number, since it is smaller than the sum of its proper divisors (784066384).

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

394407792 is a wasteful number, since it uses less digits than its factorization.

394407792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9868 (or 9853 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 45.

The square root of 394407792 is about 19859.7027168082. The cubic root of 394407792 is about 733.3565278247.

The spelling of 394407792 in words is "three hundred ninety-four million, four hundred seven thousand, seven hundred ninety-two".