2044091 has 8 divisors (see below), whose sum is σ = 2390784. Its totient is φ = 1711080.

The previous prime is 2044069. The next prime is 2044099. The reversal of 2044091 is 1904402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2044091 - 2⁶ = 2044027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2044099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3095 + ... + 3696.

It is an arithmetic number, because the mean of its divisors is an integer number (298848).

2^2044091 is an apocalyptic number.

2044091 is a deficient number, since it is larger than the sum of its proper divisors (346693).

2044091 is an equidigital number, since it uses as much as digits as its factorization.

2044091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6841.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 2044091 is about 1429.7171048847. The cubic root of 2044091 is about 126.9112364646.

Adding to 2044091 its reverse (1904402), we get a palindrome (3948493).

The spelling of 2044091 in words is "two million, forty-four thousand, ninety-one".