322663872 has 112 divisors (see below), whose sum is σ = 919959552. Its totient is φ = 99517440.

The previous prime is 322663837. The next prime is 322663919. The reversal of 322663872 is 278366223.

It is a super-2 number, since 2×322663872² = 208223948588064768, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 322663872.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135718 + ... + 138074.

Almost surely, 2^322663872 is an apocalyptic number.

322663872 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 322663872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (459979776).

322663872 is an abundant number, since it is smaller than the sum of its proper divisors (597295680).

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

322663872 is a wasteful number, since it uses less digits than its factorization.

322663872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2426 (or 2416 counting only the distinct ones).

The product of its digits is 145152, while the sum is 39.

The square root of 322663872 is about 17962.8469903855. The cubic root of 322663872 is about 685.8831183482.

The spelling of 322663872 in words is "three hundred twenty-two million, six hundred sixty-three thousand, eight hundred seventy-two".