2040945 has 16 divisors (see below), whose sum is σ = 3299712. Its totient is φ = 1077120.

The previous prime is 2040943. The next prime is 2040959. The reversal of 2040945 is 5490402.

It is not a de Polignac number, because 2040945 - 2¹ = 2040943 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2040943) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 885 + ... + 2205.

It is an arithmetic number, because the mean of its divisors is an integer number (206232).

2^2040945 is an apocalyptic number.

It is an amenable number.

2040945 is a deficient number, since it is larger than the sum of its proper divisors (1258767).

2040945 is a wasteful number, since it uses less digits than its factorization.

2040945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1432.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 2040945 is about 1428.6164635759. The cubic root of 2040945 is about 126.8460945904.

The spelling of 2040945 in words is "two million, forty thousand, nine hundred forty-five".