522320464 has 20 divisors (see below), whose sum is σ = 1012372704. Its totient is φ = 261063008.

The previous prime is 522320423. The next prime is 522320467. The reversal of 522320464 is 464023225.

It is a super-2 number, since 2×522320464² = 545637334226350592, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (522320467) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60039 + ... + 68185.

Almost surely, 2^522320464 is an apocalyptic number.

It is an amenable number.

522320464 is a deficient number, since it is larger than the sum of its proper divisors (490052240).

522320464 is a wasteful number, since it uses less digits than its factorization.

522320464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12162 (or 12156 counting only the distinct ones).

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

The square root of 522320464 is about 22854.3314056658. The cubic root of 522320464 is about 805.3395242301.

Adding to 522320464 its reverse (464023225), we get a palindrome (986343689).

The spelling of 522320464 in words is "five hundred twenty-two million, three hundred twenty thousand, four hundred sixty-four".