2190843 has 12 divisors (see below), whose sum is σ = 3181360. Its totient is φ = 1452816.

The previous prime is 2190829. The next prime is 2190857. The reversal of 2190843 is 3480912.

It is an interprime number because it is at equal distance from previous prime (2190829) and next prime (2190857).

It is not a de Polignac number, because 2190843 - 2¹² = 2186747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2190823) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1530 + ... + 2592.

2^2190843 is an apocalyptic number.

2190843 is a deficient number, since it is larger than the sum of its proper divisors (990517).

2190843 is a wasteful number, since it uses less digits than its factorization.

2190843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1298 (or 1295 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 2190843 is about 1480.1496545958. The cubic root of 2190843 is about 129.8784465375.

The spelling of 2190843 in words is "two million, one hundred ninety thousand, eight hundred forty-three".