520799970240 has 336 divisors, whose sum is σ = 2017225506816. Its totient is φ = 122181580800.

The previous prime is 520799970233. The next prime is 520799970247. The reversal of 520799970240 is 42079997025.

520799970240 is a `hidden beast` number, since 520 + 7 + 9 + 9 + 9 + 70 + 2 + 40 = 666.

It is an interprime number because it is at equal distance from previous prime (520799970233) and next prime (520799970247).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520799970247) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 716929 + ... + 1247231.

Almost surely, 2^520799970240 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 520799970240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1008612753408).

520799970240 is an abundant number, since it is smaller than the sum of its proper divisors (1496425536576).

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

520799970240 is a wasteful number, since it uses less digits than its factorization.

520799970240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530368 (or 530355 counting only the distinct ones).

The product of its (nonzero) digits is 2857680, while the sum is 54.

The spelling of 520799970240 in words is "five hundred twenty billion, seven hundred ninety-nine million, nine hundred seventy thousand, two hundred forty".