520838340 has 48 divisors (see below), whose sum is σ = 1590926400. Its totient is φ = 126263680.

The previous prime is 520838327. The next prime is 520838377. The reversal of 520838340 is 43838025.

It is a Harshad number since it is a multiple of its sum of digits (33).

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, 393915 + ... + 395234.

It is an arithmetic number, because the mean of its divisors is an integer number (33144300).

Almost surely, 2^520838340 is an apocalyptic number.

It is an amenable number.

520838340 is an abundant number, since it is smaller than the sum of its proper divisors (1070088060).

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

520838340 is a wasteful number, since it uses less digits than its factorization.

520838340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 789172 (or 789170 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 520838340 is about 22821.8829196892. The cubic root of 520838340 is about 804.5770652343.

The spelling of 520838340 in words is "five hundred twenty million, eight hundred thirty-eight thousand, three hundred forty".