2290043 has 12 divisors (see below), whose sum is σ = 2717520. Its totient is φ = 1890336.

The previous prime is 2290039. The next prime is 2290049. The reversal of 2290043 is 3400922.

It is not a de Polignac number, because 2290043 - 2² = 2290039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2289997 and 2290024.

It is not an unprimeable number, because it can be changed into a prime (2290049) 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 11 ways as a sum of consecutive naturals, for example, 5693 + ... + 6081.

It is an arithmetic number, because the mean of its divisors is an integer number (226460).

2^2290043 is an apocalyptic number.

2290043 is a deficient number, since it is larger than the sum of its proper divisors (427477).

2290043 is an equidigital number, since it uses as much as digits as its factorization.

2290043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454 (or 425 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 2290043 is about 1513.2888025754. The cubic root of 2290043 is about 131.8098540193.

Adding to 2290043 its reverse (3400922), we get a palindrome (5690965).

The spelling of 2290043 in words is "two million, two hundred ninety thousand, forty-three".