326221432 has 32 divisors (see below), whose sum is σ = 668545920. Its totient is φ = 148561920.

The previous prime is 326221421. The next prime is 326221447. The reversal of 326221432 is 234122623.

It is a super-2 number, since 2×326221432² = 212840845392261248, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 326221397 and 326221406.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 34473 + ... + 42904.

It is an arithmetic number, because the mean of its divisors is an integer number (20892060).

Almost surely, 2^326221432 is an apocalyptic number.

It is an amenable number.

326221432 is an abundant number, since it is smaller than the sum of its proper divisors (342324488).

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

326221432 is a wasteful number, since it uses less digits than its factorization.

326221432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77431 (or 77427 counting only the distinct ones).

The product of its digits is 3456, while the sum is 25.

The square root of 326221432 is about 18061.6010364530. The cubic root of 326221432 is about 688.3946660689.

The spelling of 326221432 in words is "three hundred twenty-six million, two hundred twenty-one thousand, four hundred thirty-two".