523120872 has 64 divisors (see below), whose sum is σ = 1407499200. Its totient is φ = 161418240.

The previous prime is 523120867. The next prime is 523120883. The reversal of 523120872 is 278021325.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14379 + ... + 35397.

It is an arithmetic number, because the mean of its divisors is an integer number (21992175).

Almost surely, 2^523120872 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 523120872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (703749600).

523120872 is an abundant number, since it is smaller than the sum of its proper divisors (884378328).

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

523120872 is a wasteful number, since it uses less digits than its factorization.

523120872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21106 (or 21102 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 523120872 is about 22871.8357811523. The cubic root of 523120872 is about 805.7506838271.

The spelling of 523120872 in words is "five hundred twenty-three million, one hundred twenty thousand, eight hundred seventy-two".