397250168 has 64 divisors (see below), whose sum is σ = 876480000. Its totient is φ = 165255552.

The previous prime is 397250153. The next prime is 397250171. The reversal of 397250168 is 861052793.

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 15 ways as a sum of consecutive naturals, for example, 478778 + ... + 479606.

It is an arithmetic number, because the mean of its divisors is an integer number (13695000).

Almost surely, 2^397250168 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 397250168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (438240000).

397250168 is an abundant number, since it is smaller than the sum of its proper divisors (479229832).

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

397250168 is a wasteful number, since it uses less digits than its factorization.

397250168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1084 (or 1080 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 41.

The square root of 397250168 is about 19931.1356425067. The cubic root of 397250168 is about 735.1140045599.

The spelling of 397250168 in words is "three hundred ninety-seven million, two hundred fifty thousand, one hundred sixty-eight".