2291044 has 18 divisors (see below), whose sum is σ = 4664310. Its totient is φ = 981792.

The previous prime is 2291041. The next prime is 2291063. The reversal of 2291044 is 4401922.

2291044 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 2286144 + 4900 = 1512^2 + 70^2 .

It is not an unprimeable number, because it can be changed into a prime (2291041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5649 + ... + 6040.

2^2291044 is an apocalyptic number.

It is an amenable number.

2291044 is an abundant number, since it is smaller than the sum of its proper divisors (2373266).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2291044 is a wasteful number, since it uses less digits than its factorization.

2291044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11707 (or 11698 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 2291044 is about 1513.6195030456. The cubic root of 2291044 is about 131.8290563435.

Adding to 2291044 its reverse (4401922), we get a palindrome (6692966).

The spelling of 2291044 in words is "two million, two hundred ninety-one thousand, forty-four".