523634538 has 16 divisors (see below), whose sum is σ = 1196879040. Its totient is φ = 149609856.

The previous prime is 523634533. The next prime is 523634539. The reversal of 523634538 is 835436325.

It is a junction number, because it is equal to n+sod(n) for n = 523634496 and 523634505.

It is not an unprimeable number, because it can be changed into a prime (523634533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6233703 + ... + 6233786.

It is an arithmetic number, because the mean of its divisors is an integer number (74804940).

Almost surely, 2^523634538 is an apocalyptic number.

523634538 is an abundant number, since it is smaller than the sum of its proper divisors (673244502).

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

523634538 is a wasteful number, since it uses less digits than its factorization.

523634538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12467501.

The product of its digits is 259200, while the sum is 39.

The square root of 523634538 is about 22883.0622513684. The cubic root of 523634538 is about 806.0143267428.

The spelling of 523634538 in words is "five hundred twenty-three million, six hundred thirty-four thousand, five hundred thirty-eight".