396247884 has 24 divisors (see below), whose sum is σ = 936284160. Its totient is φ = 130410384.

The previous prime is 396247879. The next prime is 396247897. The reversal of 396247884 is 488742693.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 208044 + ... + 209939.

It is an arithmetic number, because the mean of its divisors is an integer number (39011840).

Almost surely, 2^396247884 is an apocalyptic number.

It is an amenable number.

396247884 is an abundant number, since it is smaller than the sum of its proper divisors (540036276).

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

396247884 is a wasteful number, since it uses less digits than its factorization.

396247884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418069 (or 418067 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 51.

The square root of 396247884 is about 19905.9760875974. The cubic root of 396247884 is about 734.4952395340.

The spelling of 396247884 in words is "three hundred ninety-six million, two hundred forty-seven thousand, eight hundred eighty-four".