322521412 has 12 divisors (see below), whose sum is σ = 583875180. Its totient is φ = 155699936.

The previous prime is 322521389. The next prime is 322521431. The reversal of 322521412 is 214125223.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 200109316 + 122412096 = 14146^2 + 11064^2 .

It is a super-2 number, since 2×322521412² = 208040122396947488, which contains 22 as substring.

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, 1390063 + ... + 1390294.

It is an arithmetic number, because the mean of its divisors is an integer number (48656265).

Almost surely, 2^322521412 is an apocalyptic number.

It is an amenable number.

322521412 is a deficient number, since it is larger than the sum of its proper divisors (261353768).

322521412 is a wasteful number, since it uses less digits than its factorization.

322521412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2780390 (or 2780388 counting only the distinct ones).

The product of its digits is 960, while the sum is 22.

The square root of 322521412 is about 17958.8811455502. The cubic root of 322521412 is about 685.7821615929.

Adding to 322521412 its reverse (214125223), we get a palindrome (536646635).

The spelling of 322521412 in words is "three hundred twenty-two million, five hundred twenty-one thousand, four hundred twelve".