4231728 has 30 divisors (see below), whose sum is σ = 11843364. Its totient is φ = 1410528.

The previous prime is 4231723. The next prime is 4231741. The reversal of 4231728 is 8271324.

It is not an unprimeable number, because it can be changed into a prime (4231723) 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, 14550 + ... + 14837.

Almost surely, 2^4231728 is an apocalyptic number.

4231728 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

4231728 is an abundant number, since it is smaller than the sum of its proper divisors (7611636).

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

4231728 is a wasteful number, since it uses less digits than its factorization.

4231728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29401 (or 29392 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

The square root of 4231728 is about 2057.1164284017. The cubic root of 4231728 is about 161.7481225301.

The spelling of 4231728 in words is "four million, two hundred thirty-one thousand, seven hundred twenty-eight".