397452528 has 80 divisors (see below), whose sum is σ = 1244563200. Its totient is φ = 120438720.

The previous prime is 397452499. The next prime is 397452529. The reversal of 397452528 is 825254793.

397452528 is a `hidden beast` number, since 3 + 9 + 74 + 52 + 528 = 666.

It is a super-3 number, since 3×397452528³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397452529) 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, 37068 + ... + 46571.

It is an arithmetic number, because the mean of its divisors is an integer number (15557040).

Almost surely, 2^397452528 is an apocalyptic number.

It is an amenable number.

397452528 is an abundant number, since it is smaller than the sum of its proper divisors (847110672).

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

397452528 is a wasteful number, since it uses less digits than its factorization.

397452528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83667 (or 83655 counting only the distinct ones).

The product of its digits is 604800, while the sum is 45.

The square root of 397452528 is about 19936.2114756039. The cubic root of 397452528 is about 735.2388062004.

The spelling of 397452528 in words is "three hundred ninety-seven million, four hundred fifty-two thousand, five hundred twenty-eight".