523634540 has 48 divisors (see below), whose sum is σ = 1291883040. Its totient is φ = 175764480.

The previous prime is 523634539. The next prime is 523634563. The reversal of 523634540 is 45436325.

It is a junction number, because it is equal to n+sod(n) for n = 523634497 and 523634506.

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, 88685 + ... + 94404.

It is an arithmetic number, because the mean of its divisors is an integer number (26914230).

Almost surely, 2^523634540 is an apocalyptic number.

It is an amenable number.

523634540 is an abundant number, since it is smaller than the sum of its proper divisors (768248500).

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

523634540 is a wasteful number, since it uses less digits than its factorization.

523634540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183122 (or 183120 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 32.

The square root of 523634540 is about 22883.0622950688. The cubic root of 523634540 is about 806.0143277690.

The spelling of 523634540 in words is "five hundred twenty-three million, six hundred thirty-four thousand, five hundred forty".