397508130 has 24 divisors (see below), whose sum is σ = 1033521372. Its totient is φ = 106002144.

The previous prime is 397508117. The next prime is 397508159. The reversal of 397508130 is 31805793.

It can be written as a sum of positive squares in 2 ways, for example, as 394300449 + 3207681 = 19857^2 + 1791^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2208289 + ... + 2208468.

Almost surely, 2^397508130 is an apocalyptic number.

397508130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

397508130 is an abundant number, since it is smaller than the sum of its proper divisors (636013242).

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

397508130 is a wasteful number, since it uses less digits than its factorization.

397508130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4416770 (or 4416767 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 397508130 is about 19937.6059244835. The cubic root of 397508130 is about 735.2730902461.

The spelling of 397508130 in words is "three hundred ninety-seven million, five hundred eight thousand, one hundred thirty".