397708120 has 64 divisors (see below), whose sum is σ = 914227200. Its totient is φ = 155675520.

The previous prime is 397708093. The next prime is 397708127. The reversal of 397708120 is 21807793.

It is a self number, because there is not a number n which added to its sum of digits gives 397708120.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397708127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 400825 + ... + 401815.

It is an arithmetic number, because the mean of its divisors is an integer number (14284800).

Almost surely, 2^397708120 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 397708120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (457113600).

397708120 is an abundant number, since it is smaller than the sum of its proper divisors (516519080).

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

397708120 is a wasteful number, since it uses less digits than its factorization.

397708120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1208 (or 1204 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 37.

The square root of 397708120 is about 19942.6206903707. The cubic root of 397708120 is about 735.3963771265.

The spelling of 397708120 in words is "three hundred ninety-seven million, seven hundred eight thousand, one hundred twenty".