522381412 has 12 divisors (see below), whose sum is σ = 1044762880. Its totient is φ = 223877736.

The previous prime is 522381397. The next prime is 522381427. The reversal of 522381412 is 214183225.

It is an interprime number because it is at equal distance from previous prime (522381397) and next prime (522381427).

522381412 is an admirable number.

It is a super-2 number, since 2×522381412² = 545764679206227488, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28), and also a Moran number because the ratio is a prime number: 18656479 = 522381412 / (5 + 2 + 2 + 3 + 8 + 1 + 4 + 1 + 2).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9328212 + ... + 9328267.

Almost surely, 2^522381412 is an apocalyptic number.

It is an amenable number.

522381412 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

522381412 is a wasteful number, since it uses less digits than its factorization.

522381412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18656490 (or 18656488 counting only the distinct ones).

The product of its digits is 3840, while the sum is 28.

The square root of 522381412 is about 22855.6647682801. The cubic root of 522381412 is about 805.3708472254.

The spelling of 522381412 in words is "five hundred twenty-two million, three hundred eighty-one thousand, four hundred twelve".