730044 has 36 divisors (see below), whose sum is σ = 2109744. Its totient is φ = 208512.

The previous prime is 730033. The next prime is 730049. The reversal of 730044 is 440037.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a junction number, because it is equal to n+sod(n) for n = 729999 and 730026.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (730049) by changing a digit.

730044 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1197 + ... + 1700.

It is an arithmetic number, because the mean of its divisors is an integer number (58604).

2⁷³⁰⁰⁴⁴ is an apocalyptic number.

It is an amenable number.

730044 is an abundant number, since it is smaller than the sum of its proper divisors (1379700).

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

730044 is a wasteful number, since it uses less digits than its factorization.

730044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2914 (or 2909 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 18.

The square root of 730044 is about 854.4261231961. The cubic root of 730044 is about 90.0429424702.

The spelling of 730044 in words is "seven hundred thirty thousand, forty-four".