2044623 has 16 divisors (see below), whose sum is σ = 3180800. Its totient is φ = 1167768.

The previous prime is 2044621. The next prime is 2044633. The reversal of 2044623 is 3264402.

It is not a de Polignac number, because 2044623 - 2¹ = 2044621 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

2044623 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2044623.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2044621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36 + ... + 2022.

It is an arithmetic number, because the mean of its divisors is an integer number (198800).

2^2044623 is an apocalyptic number.

2044623 is a deficient number, since it is larger than the sum of its proper divisors (1136177).

2044623 is an equidigital number, since it uses as much as digits as its factorization.

2044623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2011 (or 1997 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 2044623 is about 1429.9031435730. The cubic root of 2044623 is about 126.9222455833.

The spelling of 2044623 in words is "two million, forty-four thousand, six hundred twenty-three".