396156680 has 32 divisors (see below), whose sum is σ = 906465600. Its totient is φ = 155775936.

The previous prime is 396156671. The next prime is 396156689. The reversal of 396156680 is 86651693.

It is an interprime number because it is at equal distance from previous prime (396156671) and next prime (396156689).

It is not an unprimeable number, because it can be changed into a prime (396156689) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81572 + ... + 86291.

It is an arithmetic number, because the mean of its divisors is an integer number (28327050).

Almost surely, 2^396156680 is an apocalyptic number.

It is an amenable number.

396156680 is an abundant number, since it is smaller than the sum of its proper divisors (510308920).

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

396156680 is a wasteful number, since it uses less digits than its factorization.

396156680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167933 (or 167929 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 44.

The square root of 396156680 is about 19903.6850859332. The cubic root of 396156680 is about 734.4388825188.

The spelling of 396156680 in words is "three hundred ninety-six million, one hundred fifty-six thousand, six hundred eighty".