520022180 has 48 divisors (see below), whose sum is σ = 1206576000. Its totient is φ = 187258368.

The previous prime is 520022159. The next prime is 520022183. The reversal of 520022180 is 81220025.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (520022183) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25430 + ... + 41069.

It is an arithmetic number, because the mean of its divisors is an integer number (25137000).

Almost surely, 2^520022180 is an apocalyptic number.

It is an amenable number.

520022180 is an abundant number, since it is smaller than the sum of its proper divisors (686553820).

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

520022180 is a wasteful number, since it uses less digits than its factorization.

520022180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66548 (or 66546 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 520022180 is about 22803.9948254686. The cubic root of 520022180 is about 804.1565848498.

The spelling of 520022180 in words is "five hundred twenty million, twenty-two thousand, one hundred eighty".