397560312 has 80 divisors (see below), whose sum is σ = 1130280360. Its totient is φ = 130527936.

The previous prime is 397560299. The next prime is 397560323. The reversal of 397560312 is 213065793.

397560312 is a `hidden beast` number, since 3 + 97 + 560 + 3 + 1 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 38838 + ... + 47994.

Almost surely, 2^397560312 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 397560312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (565140180).

397560312 is an abundant number, since it is smaller than the sum of its proper divisors (732720048).

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

397560312 is a wasteful number, since it uses less digits than its factorization.

397560312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9242 (or 9229 counting only the distinct ones).

The product of its (nonzero) digits is 34020, while the sum is 36.

The square root of 397560312 is about 19938.9145140853. The cubic root of 397560312 is about 735.3052626208.

The spelling of 397560312 in words is "three hundred ninety-seven million, five hundred sixty thousand, three hundred twelve".