397725360 has 40 divisors (see below), whose sum is σ = 1232949360. Its totient is φ = 106060032.

The previous prime is 397725337. The next prime is 397725373. The reversal of 397725360 is 63527793.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 828355 + ... + 828834.

It is an arithmetic number, because the mean of its divisors is an integer number (30823734).

Almost surely, 2^397725360 is an apocalyptic number.

397725360 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

397725360 is an abundant number, since it is smaller than the sum of its proper divisors (835224000).

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

397725360 is a wasteful number, since it uses less digits than its factorization.

397725360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1657205 (or 1657199 counting only the distinct ones).

The product of its (nonzero) digits is 238140, while the sum is 42.

The square root of 397725360 is about 19943.0529257684. The cubic root of 397725360 is about 735.4070030518.

The spelling of 397725360 in words is "three hundred ninety-seven million, seven hundred twenty-five thousand, three hundred sixty".