392996240 has 160 divisors (see below), whose sum is σ = 1155759360. Its totient is φ = 120932352.

The previous prime is 392996161. The next prime is 392996251. The reversal of 392996240 is 42699293.

It is a junction number, because it is equal to n+sod(n) for n = 392996191 and 392996200.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 268631 + ... + 270089.

It is an arithmetic number, because the mean of its divisors is an integer number (7223496).

Almost surely, 2^392996240 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 392996240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (577879680).

392996240 is an abundant number, since it is smaller than the sum of its proper divisors (762763120).

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

392996240 is a wasteful number, since it uses less digits than its factorization.

392996240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1529 (or 1523 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 44.

The square root of 392996240 is about 19824.1327679170. The cubic root of 392996240 is about 732.4806084629.

The spelling of 392996240 in words is "three hundred ninety-two million, nine hundred ninety-six thousand, two hundred forty".