523309260 has 96 divisors (see below), whose sum is σ = 1496763072. Its totient is φ = 136581120.

The previous prime is 523309243. The next prime is 523309261. The reversal of 523309260 is 62903325.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (523309261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 687280 + ... + 688040.

It is an arithmetic number, because the mean of its divisors is an integer number (15591282).

Almost surely, 2^523309260 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 523309260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (748381536).

523309260 is an abundant number, since it is smaller than the sum of its proper divisors (973453812).

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

523309260 is a wasteful number, since it uses less digits than its factorization.

523309260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1003 (or 1001 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 30.

The square root of 523309260 is about 22875.9537506090. The cubic root of 523309260 is about 805.8473954095.

The spelling of 523309260 in words is "five hundred twenty-three million, three hundred nine thousand, two hundred sixty".