724044 has 12 divisors (see below), whose sum is σ = 1689464. Its totient is φ = 241344.

The previous prime is 724021. The next prime is 724079. The reversal of 724044 is 440427.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 724044.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30157 + ... + 30180.

2⁷²⁴⁰⁴⁴ is an apocalyptic number.

It is an amenable number.

724044 is an abundant number, since it is smaller than the sum of its proper divisors (965420).

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

724044 is a wasteful number, since it uses less digits than its factorization.

724044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60344 (or 60342 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 21.

The square root of 724044 is about 850.9077505817. The cubic root of 724044 is about 89.7955854530.

The spelling of 724044 in words is "seven hundred twenty-four thousand, forty-four", and thus it is an iban number.