523407232 has 64 divisors (see below), whose sum is σ = 1065369600. Its totient is φ = 256089600.

The previous prime is 523407229. The next prime is 523407257. The reversal of 523407232 is 232704325.

It is a tau number, because it is divible by the number of its divisors (64).

It is a self number, because there is not a number n which added to its sum of digits gives 523407232.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1931257 + ... + 1931527.

It is an arithmetic number, because the mean of its divisors is an integer number (16646400).

Almost surely, 2^523407232 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 523407232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (532684800).

523407232 is an abundant number, since it is smaller than the sum of its proper divisors (541962368).

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

523407232 is a wasteful number, since it uses less digits than its factorization.

523407232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555 (or 543 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 28.

The square root of 523407232 is about 22878.0950255916. The cubic root of 523407232 is about 805.8976815154.

The spelling of 523407232 in words is "five hundred twenty-three million, four hundred seven thousand, two hundred thirty-two".