724338 has 12 divisors (see below), whose sum is σ = 1569438. Its totient is φ = 241440.

The previous prime is 724331. The next prime is 724393. The reversal of 724338 is 833427.

724338 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 710649 + 13689 = 843^2 + 117^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (724331) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20103 + ... + 20138.

2⁷²⁴³³⁸ is an apocalyptic number.

724338 is an abundant number, since it is smaller than the sum of its proper divisors (845100).

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

724338 is a wasteful number, since it uses less digits than its factorization.

724338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40249 (or 40246 counting only the distinct ones).

The product of its digits is 4032, while the sum is 27.

The square root of 724338 is about 851.0804897306. The cubic root of 724338 is about 89.8077377208.

The spelling of 724338 in words is "seven hundred twenty-four thousand, three hundred thirty-eight".