324736128 has 80 divisors (see below), whose sum is σ = 966440310. Its totient is φ = 108241920.

The previous prime is 324736117. The next prime is 324736151. The reversal of 324736128 is 821637423.

It is a happy number.

324736128 is a `hidden beast` number, since 32 + 4 + 7 + 3 + 612 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 271854144 + 52881984 = 16488^2 + 7272^2 .

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 324736092 and 324736101.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 5293 + ... + 26028.

Almost surely, 2^324736128 is an apocalyptic number.

It is an amenable number.

324736128 is an abundant number, since it is smaller than the sum of its proper divisors (641704182).

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

324736128 is an equidigital number, since it uses as much as digits as its factorization.

324736128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31347 (or 31326 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 324736128 is about 18020.4363987113. The cubic root of 324736128 is about 687.3483102472.

The spelling of 324736128 in words is "three hundred twenty-four million, seven hundred thirty-six thousand, one hundred twenty-eight".