396049842 has 12 divisors (see below), whose sum is σ = 858108030. Its totient is φ = 132016608.

The previous prime is 396049817. The next prime is 396049853. The reversal of 396049842 is 248940693.

396049842 is a `hidden beast` number, since 39 + 604 + 9 + 8 + 4 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 318943881 + 77105961 = 17859^2 + 8781^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11001367 + ... + 11001402.

Almost surely, 2^396049842 is an apocalyptic number.

396049842 is an abundant number, since it is smaller than the sum of its proper divisors (462058188).

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

396049842 is a wasteful number, since it uses less digits than its factorization.

396049842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22002777 (or 22002774 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The square root of 396049842 is about 19901.0010300990. The cubic root of 396049842 is about 734.3728538993.

The spelling of 396049842 in words is "three hundred ninety-six million, forty-nine thousand, eight hundred forty-two".