397601960 has 64 divisors (see below), whose sum is σ = 1028246400. Its totient is φ = 135542016.

The previous prime is 397601959. The next prime is 397601983. The reversal of 397601960 is 69106793.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46154 + ... + 54086.

It is an arithmetic number, because the mean of its divisors is an integer number (16066350).

Almost surely, 2^397601960 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 397601960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (514123200).

397601960 is an abundant number, since it is smaller than the sum of its proper divisors (630644440).

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

397601960 is a wasteful number, since it uses less digits than its factorization.

397601960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8130 (or 8126 counting only the distinct ones).

The product of its (nonzero) digits is 61236, while the sum is 41.

The square root of 397601960 is about 19939.9588765875. The cubic root of 397601960 is about 735.3309383262.

The spelling of 397601960 in words is "three hundred ninety-seven million, six hundred one thousand, nine hundred sixty".