2044989 has 12 divisors (see below), whose sum is σ = 3109600. Its totient is φ = 1291464.

The previous prime is 2044979. The next prime is 2045009. The reversal of 2044989 is 9894402.

It is a happy number.

It is not a de Polignac number, because 2044989 - 2⁸ = 2044733 is a prime.

It is a Duffinian number.

2044989 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2044909) 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 11 ways as a sum of consecutive naturals, for example, 5809 + ... + 6150.

2^2044989 is an apocalyptic number.

It is an amenable number.

2044989 is a deficient number, since it is larger than the sum of its proper divisors (1064611).

2044989 is a wasteful number, since it uses less digits than its factorization.

2044989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11984 (or 11981 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 2044989 is about 1430.0311185425. The cubic root of 2044989 is about 126.9298184171.

The spelling of 2044989 in words is "two million, forty-four thousand, nine hundred eighty-nine".