397529524224 has 288 divisors, whose sum is σ = 1360768368960. Its totient is φ = 113578868736.

The previous prime is 397529524213. The next prime is 397529524261. The reversal of 397529524224 is 422425925793.

397529524224 is a `hidden beast` number, since 3 + 9 + 7 + 529 + 52 + 42 + 24 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 3426592 + ... + 3540704.

It is an arithmetic number, because the mean of its divisors is an integer number (4724890170).

Almost surely, 2^397529524224 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 397529524224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (680384184480).

397529524224 is an abundant number, since it is smaller than the sum of its proper divisors (963238844736).

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

397529524224 is an equidigital number, since it uses as much as digits as its factorization.

397529524224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114157 (or 114125 counting only the distinct ones).

The product of its digits is 10886400, while the sum is 54.

The spelling of 397529524224 in words is "three hundred ninety-seven billion, five hundred twenty-nine million, five hundred twenty-four thousand, two hundred twenty-four".