724144 has 10 divisors (see below), whose sum is σ = 1403060. Its totient is φ = 362064.

The previous prime is 724123. The next prime is 724153. The reversal of 724144 is 441427.

It is an unprimeable number.

724144 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 as a sum of consecutive naturals, namely, 22614 + ... + 22645.

It is an arithmetic number, because the mean of its divisors is an integer number (140306).

2⁷²⁴¹⁴⁴ is an apocalyptic number.

It is an amenable number.

724144 is a deficient number, since it is larger than the sum of its proper divisors (678916).

724144 is a wasteful number, since it uses less digits than its factorization.

724144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45267 (or 45261 counting only the distinct ones).

The product of its digits is 896, while the sum is 22.

The square root of 724144 is about 850.9665093292. The cubic root of 724144 is about 89.7997192465.

It can be divided in two parts, 724 and 144, that added together give a palindrome (868).

The spelling of 724144 in words is "seven hundred twenty-four thousand, one hundred forty-four", and thus it is an iban number.