324228520 has 64 divisors (see below), whose sum is σ = 909532800. Its totient is φ = 101057280.

The previous prime is 324228491. The next prime is 324228523. The reversal of 324228520 is 25822423.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (324228523) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49555 + ... + 55714.

It is an arithmetic number, because the mean of its divisors is an integer number (14211450).

Almost surely, 2^324228520 is an apocalyptic number.

It is an amenable number.

324228520 is an abundant number, since it is smaller than the sum of its proper divisors (585304280).

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

324228520 is a wasteful number, since it uses less digits than its factorization.

324228520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105298 (or 105294 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 324228520 is about 18006.3466588867. The cubic root of 324228520 is about 686.9899829531.

The spelling of 324228520 in words is "three hundred twenty-four million, two hundred twenty-eight thousand, five hundred twenty".