397452522 has 8 divisors (see below), whose sum is σ = 794905056. Its totient is φ = 132484172.

The previous prime is 397452499. The next prime is 397452529. The reversal of 397452522 is 225254793.

It is a sphenic number, since it is the product of 3 distinct primes.

397452522 is an admirable 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 3 ways as a sum of consecutive naturals, for example, 33121038 + ... + 33121049.

It is an arithmetic number, because the mean of its divisors is an integer number (99363132).

Almost surely, 2^397452522 is an apocalyptic number.

397452522 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

397452522 is a wasteful number, since it uses less digits than its factorization.

397452522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66242092.

The product of its digits is 151200, while the sum is 39.

The square root of 397452522 is about 19936.2113251239. The cubic root of 397452522 is about 735.2388025006.

The spelling of 397452522 in words is "three hundred ninety-seven million, four hundred fifty-two thousand, five hundred twenty-two".