2242789 has 2 divisors, whose sum is σ = 2242790. Its totient is φ = 2242788.

The previous prime is 2242783. The next prime is 2242811. The reversal of 2242789 is 9872422.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1520289 + 722500 = 1233^2 + 850^2 .

It is a cyclic number.

It is not a de Polignac number, because 2242789 - 2³ = 2242781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2242781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1121394 + 1121395.

It is an arithmetic number, because the mean of its divisors is an integer number (1121395).

2^2242789 is an apocalyptic number.

It is an amenable number.

2242789 is a deficient number, since it is larger than the sum of its proper divisors (1).

2242789 is an equidigital number, since it uses as much as digits as its factorization.

2242789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16128, while the sum is 34.

The square root of 2242789 is about 1497.5944043699. The cubic root of 2242789 is about 130.8969334804.

The spelling of 2242789 in words is "two million, two hundred forty-two thousand, seven hundred eighty-nine".