2045044 has 6 divisors (see below), whose sum is σ = 3578834. Its totient is φ = 1022520.

The previous prime is 2045023. The next prime is 2045047. The reversal of 2045044 is 4405402.

It can be written as a sum of positive squares in only one way, i.e., 2044900 + 144 = 1430^2 + 12^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2045047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255627 + ... + 255634.

2^2045044 is an apocalyptic number.

It is an amenable number.

2045044 is a deficient number, since it is larger than the sum of its proper divisors (1533790).

2045044 is a wasteful number, since it uses less digits than its factorization.

2045044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511265 (or 511263 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 19.

The square root of 2045044 is about 1430.0503487640. The cubic root of 2045044 is about 126.9309563331.

The spelling of 2045044 in words is "two million, forty-five thousand, forty-four".