724746 has 32 divisors (see below), whose sum is σ = 1612800. Its totient is φ = 215280.

The previous prime is 724733. The next prime is 724747. The reversal of 724746 is 647427.

It is not an unprimeable number, because it can be changed into a prime (724747) by changing a digit.

724746 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 15 ways as a sum of consecutive naturals, for example, 5145 + ... + 5283.

It is an arithmetic number, because the mean of its divisors is an integer number (50400).

2⁷²⁴⁷⁴⁶ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 724746, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (806400).

724746 is an abundant number, since it is smaller than the sum of its proper divisors (888054).

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

724746 is a wasteful number, since it uses less digits than its factorization.

724746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234.

The product of its digits is 9408, while the sum is 30.

The square root of 724746 is about 851.3201512944. The cubic root of 724746 is about 89.8245966455.

It can be divided in two parts, 7 and 24746, that added together give a triangular number (24753 = T₂₂₂).

The spelling of 724746 in words is "seven hundred twenty-four thousand, seven hundred forty-six".