2045444 has 6 divisors (see below), whose sum is σ = 3579534. Its totient is φ = 1022720.

The previous prime is 2045441. The next prime is 2045503. The reversal of 2045444 is 4445402.

2045444 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 1638400 + 407044 = 1280^2 + 638^2 .

It is not an unprimeable number, because it can be changed into a prime (2045441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255677 + ... + 255684.

It is an arithmetic number, because the mean of its divisors is an integer number (596589).

2^2045444 is an apocalyptic number.

It is an amenable number.

2045444 is a deficient number, since it is larger than the sum of its proper divisors (1534090).

2045444 is a wasteful number, since it uses less digits than its factorization.

2045444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511365 (or 511363 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 23.

The square root of 2045444 is about 1430.1901971416. The cubic root of 2045444 is about 126.9392314726.

The spelling of 2045444 in words is "two million, forty-five thousand, four hundred forty-four".