725344 has 24 divisors (see below), whose sum is σ = 1504440. Its totient is φ = 343296.

The previous prime is 725341. The next prime is 725357. The reversal of 725344 is 443527.

It is a super-2 number, since 2×725344² = 1052247836672, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725341) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 12 + ... + 1204.

It is an arithmetic number, because the mean of its divisors is an integer number (62685).

2⁷²⁵³⁴⁴ 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 725344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (752220).

725344 is an abundant number, since it is smaller than the sum of its proper divisors (779096).

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

725344 is a wasteful number, since it uses less digits than its factorization.

725344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1222 (or 1214 counting only the distinct ones).

The product of its digits is 3360, while the sum is 25.

The square root of 725344 is about 851.6712980957. The cubic root of 725344 is about 89.8492951108.

The spelling of 725344 in words is "seven hundred twenty-five thousand, three hundred forty-four".