3128272 has 80 divisors (see below), whose sum is σ = 7713792. Its totient is φ = 1198080.

The previous prime is 3128249. The next prime is 3128291. The reversal of 3128272 is 2728213.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58998 + ... + 59050.

Almost surely, 2^3128272 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 3128272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3856896).

3128272 is an abundant number, since it is smaller than the sum of its proper divisors (4585520).

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

3128272 is a wasteful number, since it uses less digits than its factorization.

3128272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116 (or 110 counting only the distinct ones).

The product of its digits is 1344, while the sum is 25.

The square root of 3128272 is about 1768.6921721996. The cubic root of 3128272 is about 146.2518951711.

The spelling of 3128272 in words is "three million, one hundred twenty-eight thousand, two hundred seventy-two".