22340723 has 2 divisors, whose sum is σ = 22340724. Its totient is φ = 22340722.

The previous prime is 22340687. The next prime is 22340761. The reversal of 22340723 is 32704322.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22340723 - 2⁸ = 22340467 is a prime.

It is not a weakly prime, because it can be changed into another prime (22345723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11170361 + 11170362.

It is an arithmetic number, because the mean of its divisors is an integer number (11170362).

Almost surely, 2^22340723 is an apocalyptic number.

22340723 is a deficient number, since it is larger than the sum of its proper divisors (1).

22340723 is an equidigital number, since it uses as much as digits as its factorization.

22340723 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 23.

The square root of 22340723 is about 4726.5974019373. The cubic root of 22340723 is about 281.6430732351.

The spelling of 22340723 in words is "twenty-two million, three hundred forty thousand, seven hundred twenty-three".