520676240 has 120 divisors (see below), whose sum is σ = 1414367808. Its totient is φ = 174620160.

The previous prime is 520676161. The next prime is 520676243. The reversal of 520676240 is 42676025.

It is a super-2 number, since 2×520676240² = 542207493801075200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 520676197 and 520676206.

It is not an unprimeable number, because it can be changed into a prime (520676243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1572875 + ... + 1573205.

Almost surely, 2^520676240 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 520676240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (707183904).

520676240 is an abundant number, since it is smaller than the sum of its proper divisors (893691568).

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

520676240 is a wasteful number, since it uses less digits than its factorization.

520676240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457 (or 398 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 520676240 is about 22818.3312273269. The cubic root of 520676240 is about 804.4935873328.

The spelling of 520676240 in words is "five hundred twenty million, six hundred seventy-six thousand, two hundred forty".