724830 has 32 divisors (see below), whose sum is σ = 1789344. Its totient is φ = 187776.

The previous prime is 724813. The next prime is 724837. The reversal of 724830 is 38427.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 724830.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (724837) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 784 + ... + 1436.

It is an arithmetic number, because the mean of its divisors is an integer number (55917).

2⁷²⁴⁸³⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 724830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (894672).

724830 is an abundant number, since it is smaller than the sum of its proper divisors (1064514).

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

724830 is a wasteful number, since it uses less digits than its factorization.

724830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 724830 is about 851.3694850064. The cubic root of 724830 is about 89.8280668151.

The spelling of 724830 in words is "seven hundred twenty-four thousand, eight hundred thirty".