326431332 has 36 divisors (see below), whose sum is σ = 826079436. Its totient is φ = 108687360.

The previous prime is 326431321. The next prime is 326431351. The reversal of 326431332 is 233134623.

It is a happy number.

326431332 is a `hidden beast` number, since 3 + 2 + 643 + 13 + 3 + 2 = 666.

326431332 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 298805796 + 27625536 = 17286^2 + 5256^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×326431332² = 213114829022588448, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 326431296 and 326431305.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30532 + ... + 39812.

It is an arithmetic number, because the mean of its divisors is an integer number (22946651).

Almost surely, 2^326431332 is an apocalyptic number.

It is an amenable number.

326431332 is an abundant number, since it is smaller than the sum of its proper divisors (499648104).

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

326431332 is a wasteful number, since it uses less digits than its factorization.

326431332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10268 (or 10263 counting only the distinct ones).

The product of its digits is 7776, while the sum is 27.

The square root of 326431332 is about 18067.4107718843. The cubic root of 326431332 is about 688.5422785460.

Adding to 326431332 its reverse (233134623), we get a palindrome (559565955).

It can be divided in two parts, 3264 and 31332, that added together give a square (34596 = 186²).

The spelling of 326431332 in words is "three hundred twenty-six million, four hundred thirty-one thousand, three hundred thirty-two".