323220530 has 16 divisors (see below), whose sum is σ = 597521880. Its totient is φ = 125793792.

The previous prime is 323220523. The next prime is 323220563. The reversal of 323220530 is 35022323.

It can be written as a sum of positive squares in 4 ways, for example, as 322094809 + 1125721 = 17947^2 + 1061^2 .

It is a super-2 number, since 2×323220530² = 208943022026961800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 436415 + ... + 437154.

Almost surely, 2^323220530 is an apocalyptic number.

323220530 is a deficient number, since it is larger than the sum of its proper divisors (274301350).

323220530 is a wasteful number, since it uses less digits than its factorization.

323220530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 873613.

The product of its (nonzero) digits is 1080, while the sum is 20.

The square root of 323220530 is about 17978.3350174592. The cubic root of 323220530 is about 686.2773190496.

Adding to 323220530 its reverse (35022323), we get a palindrome (358242853).

The spelling of 323220530 in words is "three hundred twenty-three million, two hundred twenty thousand, five hundred thirty".