520634632 has 16 divisors (see below), whose sum is σ = 1115645760. Its totient is φ = 223129104.

The previous prime is 520634617. The next prime is 520634633. The reversal of 520634632 is 236436025.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 520634594 and 520634603.

It is not an unprimeable number, because it can be changed into a prime (520634633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4648468 + ... + 4648579.

It is an arithmetic number, because the mean of its divisors is an integer number (69727860).

Almost surely, 2^520634632 is an apocalyptic number.

It is an amenable number.

520634632 is an abundant number, since it is smaller than the sum of its proper divisors (595011128).

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

520634632 is a wasteful number, since it uses less digits than its factorization.

520634632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9297060 (or 9297056 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 31.

The square root of 520634632 is about 22817.4194859980. The cubic root of 520634632 is about 804.4721573421.

The spelling of 520634632 in words is "five hundred twenty million, six hundred thirty-four thousand, six hundred thirty-two".