397132120 has 64 divisors (see below), whose sum is σ = 1114041600. Its totient is φ = 123780480.

The previous prime is 397132117. The next prime is 397132159. The reversal of 397132120 is 21231793.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent 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, 61390 + ... + 67549.

It is an arithmetic number, because the mean of its divisors is an integer number (17406900).

Almost surely, 2^397132120 is an apocalyptic number.

It is an amenable number.

397132120 is an abundant number, since it is smaller than the sum of its proper divisors (716909480).

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

397132120 is a wasteful number, since it uses less digits than its factorization.

397132120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128968 (or 128964 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 397132120 is about 19928.1740257355. The cubic root of 397132120 is about 735.0411811501.

The spelling of 397132120 in words is "three hundred ninety-seven million, one hundred thirty-two thousand, one hundred twenty".