2240291 has 2 divisors, whose sum is σ = 2240292. Its totient is φ = 2240290.

The previous prime is 2240267. The next prime is 2240299. The reversal of 2240291 is 1920422.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2240291 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2240299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1120145 + 1120146.

It is an arithmetic number, because the mean of its divisors is an integer number (1120146).

2^2240291 is an apocalyptic number.

2240291 is a deficient number, since it is larger than the sum of its proper divisors (1).

2240291 is an equidigital number, since it uses as much as digits as its factorization.

2240291 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 2240291 is about 1496.7601678292. The cubic root of 2240291 is about 130.8483181163.

The spelling of 2240291 in words is "two million, two hundred forty thousand, two hundred ninety-one".