328224672 has 36 divisors (see below), whose sum is σ = 933389730. Its totient is φ = 109408128.

The previous prime is 328224667. The next prime is 328224679. The reversal of 328224672 is 276422823.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 297355536 + 30869136 = 17244^2 + 5556^2 .

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

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

It is not an unprimeable number, because it can be changed into a prime (328224679) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 569547 + ... + 570122.

Almost surely, 2^328224672 is an apocalyptic number.

328224672 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

328224672 is an abundant number, since it is smaller than the sum of its proper divisors (605165058).

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

328224672 is a wasteful number, since it uses less digits than its factorization.

328224672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1139685 (or 1139674 counting only the distinct ones).

The product of its digits is 64512, while the sum is 36.

The square root of 328224672 is about 18116.9719324174. The cubic root of 328224672 is about 689.8008751179.

The spelling of 328224672 in words is "three hundred twenty-eight million, two hundred twenty-four thousand, six hundred seventy-two".