2044389 has 8 divisors (see below), whose sum is σ = 2744512. Its totient is φ = 1353600.

The previous prime is 2044363. The next prime is 2044391. The reversal of 2044389 is 9834402.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2044389 - 2¹² = 2040293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2044489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1804 + ... + 2709.

It is an arithmetic number, because the mean of its divisors is an integer number (343064).

2^2044389 is an apocalyptic number.

It is an amenable number.

2044389 is a deficient number, since it is larger than the sum of its proper divisors (700123).

2044389 is a wasteful number, since it uses less digits than its factorization.

2044389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4667.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 2044389 is about 1429.8213175079. The cubic root of 2044389 is about 126.9174034619.

The spelling of 2044389 in words is "two million, forty-four thousand, three hundred eighty-nine".