520222338 has 80 divisors (see below), whose sum is σ = 1246295160. Its totient is φ = 161616384.

The previous prime is 520222333. The next prime is 520222361. The reversal of 520222338 is 833222025.

It can be written as a sum of positive squares in 4 ways, for example, as 505035729 + 15186609 = 22473^2 + 3897^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (520222333) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 299320 + ... + 301052.

Almost surely, 2^520222338 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 520222338, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (623147580).

520222338 is an abundant number, since it is smaller than the sum of its proper divisors (726072822).

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

520222338 is a wasteful number, since it uses less digits than its factorization.

520222338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1873 (or 1864 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 520222338 is about 22808.3830641280. The cubic root of 520222338 is about 804.2597456592.

The spelling of 520222338 in words is "five hundred twenty million, two hundred twenty-two thousand, three hundred thirty-eight".