2490443 has 4 divisors (see below), whose sum is σ = 2507088. Its totient is φ = 2473800.

The previous prime is 2490421. The next prime is 2490451. The reversal of 2490443 is 3440942.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3440942 = 2 ⋅1720471.

It is a cyclic number.

It is not a de Polignac number, because 2490443 - 2¹⁶ = 2424907 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2490413) 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 3 ways as a sum of consecutive naturals, for example, 8096 + ... + 8397.

It is an arithmetic number, because the mean of its divisors is an integer number (626772).

2^2490443 is an apocalyptic number.

2490443 is a deficient number, since it is larger than the sum of its proper divisors (16645).

2490443 is a wasteful number, since it uses less digits than its factorization.

2490443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16644.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 2490443 is about 1578.1137474846. The cubic root of 2490443 is about 135.5477153886.

The spelling of 2490443 in words is "two million, four hundred ninety thousand, four hundred forty-three".