3221423328 has 24 divisors (see below), whose sum is σ = 8456236488. Its totient is φ = 1073807744.

The previous prime is 3221423321. The next prime is 3221423329. The reversal of 3221423328 is 8233241223.

It is a tau number, because it is divible by the number of its divisors (24).

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 = 3221423295 and 3221423304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3221423321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16778151 + ... + 16778342.

It is an arithmetic number, because the mean of its divisors is an integer number (352343187).

Almost surely, 2^3221423328 is an apocalyptic number.

It is an amenable number.

3221423328 is an abundant number, since it is smaller than the sum of its proper divisors (5234813160).

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

3221423328 is a wasteful number, since it uses less digits than its factorization.

3221423328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33556506 (or 33556498 counting only the distinct ones).

The product of its digits is 13824, while the sum is 30.

The square root of 3221423328 is about 56757.5838809229. The cubic root of 3221423328 is about 1476.8937969689.

The spelling of 3221423328 in words is "three billion, two hundred twenty-one million, four hundred twenty-three thousand, three hundred twenty-eight".