397071260 has 36 divisors (see below), whose sum is σ = 841376088. Its totient is φ = 157401792.

The previous prime is 397071251. The next prime is 397071271. The reversal of 397071260 is 62170793.

It is a self number, because there is not a number n which added to its sum of digits gives 397071260.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1137566 + ... + 1137914.

It is an arithmetic number, because the mean of its divisors is an integer number (23371558).

Almost surely, 2^397071260 is an apocalyptic number.

It is an amenable number.

397071260 is an abundant number, since it is smaller than the sum of its proper divisors (444304828).

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

397071260 is a wasteful number, since it uses less digits than its factorization.

397071260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 870 (or 519 counting only the distinct ones).

The product of its (nonzero) digits is 15876, while the sum is 35.

The square root of 397071260 is about 19926.6469833738. The cubic root of 397071260 is about 735.0036311851.

The spelling of 397071260 in words is "three hundred ninety-seven million, seventy-one thousand, two hundred sixty".