397526160 has 160 divisors (see below), whose sum is σ = 1282417920. Its totient is φ = 101785600.

The previous prime is 397526123. The next prime is 397526167. The reversal of 397526160 is 61625793.

It is not an unprimeable number, because it can be changed into a prime (397526167) 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 31 ways as a sum of consecutive naturals, for example, 698356 + ... + 698924.

It is an arithmetic number, because the mean of its divisors is an integer number (8015112).

Almost surely, 2^397526160 is an apocalyptic number.

397526160 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 397526160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (641208960).

397526160 is an abundant number, since it is smaller than the sum of its proper divisors (884891760).

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

397526160 is a wasteful number, since it uses less digits than its factorization.

397526160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 697 (or 691 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 39.

The square root of 397526160 is about 19938.0580799636. The cubic root of 397526160 is about 735.2842068098.

It can be divided in two parts, 3975 and 26160, that added together give a triangular number (30135 = T₂₄₅).

The spelling of 397526160 in words is "three hundred ninety-seven million, five hundred twenty-six thousand, one hundred sixty".