3229128 has 96 divisors (see below), whose sum is σ = 10296000. Its totient is φ = 895104.

The previous prime is 3229123. The next prime is 3229139. The reversal of 3229128 is 8219223.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (3229123) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21598 + ... + 21746.

It is an arithmetic number, because the mean of its divisors is an integer number (107250).

Almost surely, 2^3229128 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3229128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5148000).

3229128 is an abundant number, since it is smaller than the sum of its proper divisors (7066872).

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

3229128 is a wasteful number, since it uses less digits than its factorization.

3229128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211 (or 204 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 3229128 is about 1796.9774622961. The cubic root of 3229128 is about 147.8070287551.

The spelling of 3229128 in words is "three million, two hundred twenty-nine thousand, one hundred twenty-eight".