724272 has 40 divisors (see below), whose sum is σ = 1904640. Its totient is φ = 237120.

The previous prime is 724267. The next prime is 724277. The reversal of 724272 is 272427.

It is an interprime number because it is at equal distance from previous prime (724267) and next prime (724277).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (724277) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3697 + ... + 3887.

It is an arithmetic number, because the mean of its divisors is an integer number (47616).

2⁷²⁴²⁷² 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 724272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (952320).

724272 is an abundant number, since it is smaller than the sum of its proper divisors (1180368).

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

724272 is a wasteful number, since it uses less digits than its factorization.

724272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281 (or 275 counting only the distinct ones).

The product of its digits is 1568, while the sum is 24.

The square root of 724272 is about 851.0417146063. The cubic root of 724272 is about 89.8050099470.

Adding to 724272 its reverse (272427), we get a palindrome (996699).

The spelling of 724272 in words is "seven hundred twenty-four thousand, two hundred seventy-two", and thus it is an iban number.