2145044 has 12 divisors (see below), whose sum is σ = 4095168. Its totient is φ = 975000.

The previous prime is 2145023. The next prime is 2145047. The reversal of 2145044 is 4405412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2145047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24332 + ... + 24419.

It is an arithmetic number, because the mean of its divisors is an integer number (341264).

2^2145044 is an apocalyptic number.

It is an amenable number.

2145044 is a deficient number, since it is larger than the sum of its proper divisors (1950124).

2145044 is a wasteful number, since it uses less digits than its factorization.

2145044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48766 (or 48764 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 2145044 is about 1464.5968728630. The cubic root of 2145044 is about 128.9670408356.

The spelling of 2145044 in words is "two million, one hundred forty-five thousand, forty-four".