397549368 has 96 divisors (see below), whose sum is σ = 1097450640. Its totient is φ = 129991680.

The previous prime is 397549351. The next prime is 397549379. The reversal of 397549368 is 863945793.

397549368 is a `hidden beast` number, since 3 + 97 + 5 + 493 + 68 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1065630 + ... + 1066002.

Almost surely, 2^397549368 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 397549368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (548725320).

397549368 is an abundant number, since it is smaller than the sum of its proper divisors (699901272).

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

397549368 is a wasteful number, since it uses less digits than its factorization.

397549368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 629 (or 622 counting only the distinct ones).

The product of its digits is 4898880, while the sum is 54.

The square root of 397549368 is about 19938.6400739870. The cubic root of 397549368 is about 735.2985154227.

The spelling of 397549368 in words is "three hundred ninety-seven million, five hundred forty-nine thousand, three hundred sixty-eight".