520081968 has 80 divisors (see below), whose sum is σ = 1545416960. Its totient is φ = 147633408.

The previous prime is 520081949. The next prime is 520081993. The reversal of 520081968 is 869180025.

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, 47823 + ... + 57681.

It is an arithmetic number, because the mean of its divisors is an integer number (19317712).

Almost surely, 2^520081968 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 520081968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (772708480).

520081968 is an abundant number, since it is smaller than the sum of its proper divisors (1025334992).

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

520081968 is a wasteful number, since it uses less digits than its factorization.

520081968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10034 (or 10028 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 39.

The square root of 520081968 is about 22805.3056984553. The cubic root of 520081968 is about 804.1874021708.

The spelling of 520081968 in words is "five hundred twenty million, eighty-one thousand, nine hundred sixty-eight".