328021224 has 16 divisors (see below), whose sum is σ = 820053120. Its totient is φ = 109340400.

The previous prime is 328021201. The next prime is 328021231. The reversal of 328021224 is 422120823.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 13667551 = 328021224 / (3 + 2 + 8 + 0 + 2 + 1 + 2 + 2 + 4).

It is a junction number, because it is equal to n+sod(n) for n = 328021194 and 328021203.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6833752 + ... + 6833799.

It is an arithmetic number, because the mean of its divisors is an integer number (51253320).

Almost surely, 2^328021224 is an apocalyptic number.

It is an amenable number.

328021224 is an abundant number, since it is smaller than the sum of its proper divisors (492031896).

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

328021224 is a wasteful number, since it uses less digits than its factorization.

328021224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13667560 (or 13667556 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 328021224 is about 18111.3562164737. The cubic root of 328021224 is about 689.6583227481.

The spelling of 328021224 in words is "three hundred twenty-eight million, twenty-one thousand, two hundred twenty-four".