397508160 has 224 divisors, whose sum is σ = 1455724800. Its totient is φ = 90021888.

The previous prime is 397508159. The next prime is 397508179. The reversal of 397508160 is 61805793.

It is a tau number, because it is divible by the number of its divisors (224).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1001082 + ... + 1001478.

Almost surely, 2^397508160 is an apocalyptic number.

397508160 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 397508160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (727862400).

397508160 is an abundant number, since it is smaller than the sum of its proper divisors (1058216640).

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

397508160 is a wasteful number, since it uses less digits than its factorization.

397508160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 573 (or 563 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 397508160 is about 19937.6066768306. The cubic root of 397508160 is about 735.2731087431.

The spelling of 397508160 in words is "three hundred ninety-seven million, five hundred eight thousand, one hundred sixty".