726572 has 36 divisors (see below), whose sum is σ = 1618344. Its totient is φ = 282240.

The previous prime is 726559. The next prime is 726589. The reversal of 726572 is 275627.

It is a happy number.

It is a nialpdrome in base 15.

It is an unprimeable number.

726572 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1988 + ... + 2324.

It is an arithmetic number, because the mean of its divisors is an integer number (44954).

2⁷²⁶⁵⁷² 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 726572, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (809172).

726572 is an abundant number, since it is smaller than the sum of its proper divisors (891772).

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

726572 is a wasteful number, since it uses less digits than its factorization.

726572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366 (or 357 counting only the distinct ones).

The product of its digits is 5880, while the sum is 29.

The square root of 726572 is about 852.3919286338. The cubic root of 726572 is about 89.8999711705.

It can be divided in two parts, 7265 and 72, that added together give a palindrome (7337).

The spelling of 726572 in words is "seven hundred twenty-six thousand, five hundred seventy-two".