2240891 has 2 divisors, whose sum is σ = 2240892. Its totient is φ = 2240890.

The previous prime is 2240863. The next prime is 2240941. The reversal of 2240891 is 1980422.

2240891 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2240891 - 2⁶ = 2240827 is a prime.

It is a Chen prime.

It is equal to p₁₆₅₄₆₄ and since 2240891 and 165464 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2240891.

It is not a weakly prime, because it can be changed into another prime (2240851) 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 as a sum of consecutive naturals, namely, 1120445 + 1120446.

It is an arithmetic number, because the mean of its divisors is an integer number (1120446).

2^2240891 is an apocalyptic number.

2240891 is a deficient number, since it is larger than the sum of its proper divisors (1).

2240891 is an equidigital number, since it uses as much as digits as its factorization.

2240891 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 2240891 is about 1496.9605873235. The cubic root of 2240891 is about 130.8599984417.

The spelling of 2240891 in words is "two million, two hundred forty thousand, eight hundred ninety-one".