397053680 has 20 divisors (see below), whose sum is σ = 923149992. Its totient is φ = 158821440.

The previous prime is 397053677. The next prime is 397053731. The reversal of 397053680 is 86350793.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2481506 + ... + 2481665.

Almost surely, 2^397053680 is an apocalyptic number.

It is an amenable number.

397053680 is an abundant number, since it is smaller than the sum of its proper divisors (526096312).

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

397053680 is a wasteful number, since it uses less digits than its factorization.

397053680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4963184 (or 4963178 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 41.

The square root of 397053680 is about 19926.2058606248. The cubic root of 397053680 is about 734.9927838001.

The spelling of 397053680 in words is "three hundred ninety-seven million, fifty-three thousand, six hundred eighty".