731272 has 32 divisors (see below), whose sum is σ = 1533600. Its totient is φ = 324864.

The previous prime is 731267. The next prime is 731287. The reversal of 731272 is 272137.

It is an unprimeable number.

731272 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2443 + ... + 2725.

It is an arithmetic number, because the mean of its divisors is an integer number (47925).

2⁷³¹²⁷² is an apocalyptic number.

It is an amenable number.

731272 is an abundant number, since it is smaller than the sum of its proper divisors (802328).

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

731272 is a wasteful number, since it uses less digits than its factorization.

731272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325 (or 321 counting only the distinct ones).

The product of its digits is 588, while the sum is 22.

The square root of 731272 is about 855.1444322452. The cubic root of 731272 is about 90.0934009784.

The spelling of 731272 in words is "seven hundred thirty-one thousand, two hundred seventy-two".