2640227 has 2 divisors, whose sum is σ = 2640228. Its totient is φ = 2640226.

The previous prime is 2640217. The next prime is 2640251. The reversal of 2640227 is 7220462.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2640227 - 2⁶ = 2640163 is a prime.

It is a super-2 number, since 2×2640227² = 13941597223058, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2640217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1320113 + 1320114.

It is an arithmetic number, because the mean of its divisors is an integer number (1320114).

2^2640227 is an apocalyptic number.

2640227 is a deficient number, since it is larger than the sum of its proper divisors (1).

2640227 is an equidigital number, since it uses as much as digits as its factorization.

2640227 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 2640227 is about 1624.8775338468. The cubic root of 2640227 is about 138.2124257647.

Adding to 2640227 its reverse (7220462), we get a palindrome (9860689).

The spelling of 2640227 in words is "two million, six hundred forty thousand, two hundred twenty-seven".