520163490 has 128 divisors (see below), whose sum is σ = 1575770112. Its totient is φ = 106744320.

The previous prime is 520163489. The next prime is 520163491. The reversal of 520163490 is 94361025.

520163490 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (520163489) and next prime (520163491).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (520163491) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 190374 + ... + 193086.

It is an arithmetic number, because the mean of its divisors is an integer number (12310704).

Almost surely, 2^520163490 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 520163490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (787885056).

520163490 is an abundant number, since it is smaller than the sum of its proper divisors (1055606622).

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

520163490 is a wasteful number, since it uses less digits than its factorization.

520163490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2824.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 520163490 is about 22807.0929756512. The cubic root of 520163490 is about 804.2294183300.

The spelling of 520163490 in words is "five hundred twenty million, one hundred sixty-three thousand, four hundred ninety".