2100044 has 24 divisors (see below), whose sum is σ = 3946320. Its totient is φ = 974336.

The previous prime is 2100041. The next prime is 2100053. The reversal of 2100044 is 4400012.

It is a junction number, because it is equal to n+sod(n) for n = 2099998 and 2100034.

It is not an unprimeable number, because it can be changed into a prime (2100041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5879 + ... + 6225.

It is an arithmetic number, because the mean of its divisors is an integer number (164430).

2^2100044 is an apocalyptic number.

It is an amenable number.

2100044 is a deficient number, since it is larger than the sum of its proper divisors (1846276).

2100044 is a wasteful number, since it uses less digits than its factorization.

2100044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457 (or 455 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 2100044 is about 1449.1528559817. The cubic root of 2100044 is about 128.0588108653.

Subtracting from 2100044 its product of nonzero digits (32), we obtain a palindrome (2100012).

Adding to 2100044 its reverse (4400012), we get a palindrome (6500056).

Subtracting 2100044 from its reverse (4400012), we obtain a cube (2299968 = 132³).

The spelling of 2100044 in words is "two million, one hundred thousand, forty-four".