396886860 has 72 divisors (see below), whose sum is σ = 1205554896. Its totient is φ = 105690240.

The previous prime is 396886829. The next prime is 396886871. The reversal of 396886860 is 68688693.

It is a junction number, because it is equal to n+sod(n) for n = 396886797 and 396886806.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 211647 + ... + 213513.

It is an arithmetic number, because the mean of its divisors is an integer number (16743818).

Almost surely, 2^396886860 is an apocalyptic number.

396886860 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

396886860 is an abundant number, since it is smaller than the sum of its proper divisors (808668036).

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

396886860 is a wasteful number, since it uses less digits than its factorization.

396886860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3063 (or 3058 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 54.

The square root of 396886860 is about 19922.0194759467. The cubic root of 396886860 is about 734.8898349396.

The spelling of 396886860 in words is "three hundred ninety-six million, eight hundred eighty-six thousand, eight hundred sixty".