2044491 has 4 divisors (see below), whose sum is σ = 2725992. Its totient is φ = 1362992.

The previous prime is 2044489. The next prime is 2044499. The reversal of 2044491 is 1944402.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2044491 - 2¹ = 2044489 is a prime.

It is a D-number.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (2044499) 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, 340746 + ... + 340751.

It is an arithmetic number, because the mean of its divisors is an integer number (681498).

2^2044491 is an apocalyptic number.

2044491 is a deficient number, since it is larger than the sum of its proper divisors (681501).

2044491 is an equidigital number, since it uses as much as digits as its factorization.

2044491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681500.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 2044491 is about 1429.8569858556. The cubic root of 2044491 is about 126.9195141756.

Adding to 2044491 its reverse (1944402), we get a palindrome (3988893).

The spelling of 2044491 in words is "two million, forty-four thousand, four hundred ninety-one".