394270392 has 64 divisors (see below), whose sum is σ = 1063406880. Its totient is φ = 121352192.

The previous prime is 394270363. The next prime is 394270403. The reversal of 394270392 is 293072493.

It is a self number, because there is not a number n which added to its sum of digits gives 394270392.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12508 + ... + 30740.

Almost surely, 2^394270392 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 394270392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (531703440).

394270392 is an abundant number, since it is smaller than the sum of its proper divisors (669136488).

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

394270392 is a wasteful number, since it uses less digits than its factorization.

394270392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18312 (or 18308 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 39.

The square root of 394270392 is about 19856.2431491962. The cubic root of 394270392 is about 733.2713580316.

The spelling of 394270392 in words is "three hundred ninety-four million, two hundred seventy thousand, three hundred ninety-two".