397803180 has 48 divisors (see below), whose sum is σ = 1121349600. Its totient is φ = 105366528.

The previous prime is 397803167. The next prime is 397803181. The reversal of 397803180 is 81308793.

It is a super-2 number, since 2×397803180² = 316494740036224800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (397803181) 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, 13309 + ... + 31188.

It is an arithmetic number, because the mean of its divisors is an integer number (23361450).

Almost surely, 2^397803180 is an apocalyptic number.

397803180 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

397803180 is an abundant number, since it is smaller than the sum of its proper divisors (723546420).

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

397803180 is a wasteful number, since it uses less digits than its factorization.

397803180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44658 (or 44656 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 397803180 is about 19945.0038856853. The cubic root of 397803180 is about 735.4549638196.

The spelling of 397803180 in words is "three hundred ninety-seven million, eight hundred three thousand, one hundred eighty".