522313444 has 12 divisors (see below), whose sum is σ = 933496704. Its totient is φ = 255600104.

The previous prime is 522313433. The next prime is 522313453. The reversal of 522313444 is 444313225.

It is a happy number.

It is a super-2 number, since 2×522313444² = 545622667566282272, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1388944 + ... + 1389319.

It is an arithmetic number, because the mean of its divisors is an integer number (77791392).

Almost surely, 2^522313444 is an apocalyptic number.

It is an amenable number.

522313444 is a deficient number, since it is larger than the sum of its proper divisors (411183260).

522313444 is a wasteful number, since it uses less digits than its factorization.

522313444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2778314 (or 2778312 counting only the distinct ones).

The product of its digits is 11520, while the sum is 28.

The square root of 522313444 is about 22854.1778237591. The cubic root of 522313444 is about 805.3359162862.

Adding to 522313444 its reverse (444313225), we get a palindrome (966626669).

The spelling of 522313444 in words is "five hundred twenty-two million, three hundred thirteen thousand, four hundred forty-four".