520000872 has 16 divisors (see below), whose sum is σ = 1300002240. Its totient is φ = 173333616.

The previous prime is 520000867. The next prime is 520000883. The reversal of 520000872 is 278000025.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 21666703 = 520000872 / (5 + 2 + 0 + 0 + 0 + 0 + 8 + 7 + 2).

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, 10833328 + ... + 10833375.

It is an arithmetic number, because the mean of its divisors is an integer number (81250140).

Almost surely, 2^520000872 is an apocalyptic number.

It is an amenable number.

520000872 is an abundant number, since it is smaller than the sum of its proper divisors (780001368).

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

520000872 is a wasteful number, since it uses less digits than its factorization.

520000872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21666712 (or 21666708 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 24.

The square root of 520000872 is about 22803.5276218396. The cubic root of 520000872 is about 804.1456012141.

Adding to 520000872 its reverse (278000025), we get a palindrome (798000897).

The spelling of 520000872 in words is "five hundred twenty million, eight hundred seventy-two", and thus it is an aban number.