397951180 has 24 divisors (see below), whose sum is σ = 911670480. Its totient is φ = 144709440.

The previous prime is 397951163. The next prime is 397951187. The reversal of 397951180 is 81159793.

It is not an unprimeable number, because it can be changed into a prime (397951187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 904215 + ... + 904654.

It is an arithmetic number, because the mean of its divisors is an integer number (37986270).

Almost surely, 2^397951180 is an apocalyptic number.

It is an amenable number.

397951180 is an abundant number, since it is smaller than the sum of its proper divisors (513719300).

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

397951180 is a wasteful number, since it uses less digits than its factorization.

397951180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1808889 (or 1808887 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 43.

The square root of 397951180 is about 19948.7137429961. The cubic root of 397951180 is about 735.5461595367.

The spelling of 397951180 in words is "three hundred ninety-seven million, nine hundred fifty-one thousand, one hundred eighty".