724500 has 144 divisors (see below), whose sum is σ = 2725632. Its totient is φ = 158400.

The previous prime is 724499. The next prime is 724513. The reversal of 724500 is 5427.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 31489 + ... + 31511.

It is an arithmetic number, because the mean of its divisors is an integer number (18928).

2⁷²⁴⁵⁰⁰ is an apocalyptic number.

724500 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 724500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1362816).

724500 is an abundant number, since it is smaller than the sum of its proper divisors (2001132).

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

724500 is a wasteful number, since it uses less digits than its factorization.

724500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55 (or 40 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 18.

The square root of 724500 is about 851.1756575467. The cubic root of 724500 is about 89.8144324632.

Adding to 724500 its reverse (5427), we get a palindrome (729927).

The spelling of 724500 in words is "seven hundred twenty-four thousand, five hundred".