22740719 has 2 divisors, whose sum is σ = 22740720. Its totient is φ = 22740718.

The previous prime is 22740709. The next prime is 22740743. The reversal of 22740719 is 91704722.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22740719 - 2⁸ = 22740463 is a prime.

It is a super-2 number, since 2×22740719² = 1034280601273922, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22740709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11370359 + 11370360.

It is an arithmetic number, because the mean of its divisors is an integer number (11370360).

Almost surely, 2^22740719 is an apocalyptic number.

22740719 is a deficient number, since it is larger than the sum of its proper divisors (1).

22740719 is an equidigital number, since it uses as much as digits as its factorization.

22740719 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7056, while the sum is 32.

The square root of 22740719 is about 4768.7229946811. The cubic root of 22740719 is about 283.3140183681.

The spelling of 22740719 in words is "twenty-two million, seven hundred forty thousand, seven hundred nineteen".