523204740 has 72 divisors (see below), whose sum is σ = 1592817408. Its totient is φ = 139014720.

The previous prime is 523204723. The next prime is 523204769. The reversal of 523204740 is 47402325.

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, 45805 + ... + 56075.

It is an arithmetic number, because the mean of its divisors is an integer number (22122464).

Almost surely, 2^523204740 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 523204740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (796408704).

523204740 is an abundant number, since it is smaller than the sum of its proper divisors (1069612668).

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

523204740 is a wasteful number, since it uses less digits than its factorization.

523204740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10569 (or 10564 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 27.

The square root of 523204740 is about 22873.6691416135. The cubic root of 523204740 is about 805.7937414905.

The spelling of 523204740 in words is "five hundred twenty-three million, two hundred four thousand, seven hundred forty".