523749968 has 20 divisors (see below), whose sum is σ = 1159732320. Its totient is φ = 224464224.

The previous prime is 523749931. The next prime is 523749973. The reversal of 523749968 is 869947325.

It is a happy number.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2338058 + ... + 2338281.

It is an arithmetic number, because the mean of its divisors is an integer number (57986616).

Almost surely, 2^523749968 is an apocalyptic number.

It is an amenable number.

523749968 is an abundant number, since it is smaller than the sum of its proper divisors (635982352).

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

523749968 is a wasteful number, since it uses less digits than its factorization.

523749968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4676354 (or 4676348 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 53.

The square root of 523749968 is about 22885.5842835616. The cubic root of 523749968 is about 806.0735483254.

The spelling of 523749968 in words is "five hundred twenty-three million, seven hundred forty-nine thousand, nine hundred sixty-eight".