3728272 has 20 divisors (see below), whose sum is σ = 7392880. Its totient is φ = 1820448.

The previous prime is 3728267. The next prime is 3728273. The reversal of 3728272 is 2728273.

3728272 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (3728273) 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, 2022 + ... + 3397.

It is an arithmetic number, because the mean of its divisors is an integer number (369644).

Almost surely, 2^3728272 is an apocalyptic number.

It is an amenable number.

3728272 is a deficient number, since it is larger than the sum of its proper divisors (3664608).

3728272 is a wasteful number, since it uses less digits than its factorization.

3728272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5470 (or 5464 counting only the distinct ones).

The product of its digits is 9408, while the sum is 31.

The square root of 3728272 is about 1930.8733775160. The cubic root of 3728272 is about 155.0609819013.

Subtracting from 3728272 its reverse (2728273), we obtain a palindrome (999999).

The spelling of 3728272 in words is "three million, seven hundred twenty-eight thousand, two hundred seventy-two".