22024423 has 2 divisors, whose sum is σ = 22024424. Its totient is φ = 22024422.

The previous prime is 22024399. The next prime is 22024459. The reversal of 22024423 is 32442022.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22024423 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22024423.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22024463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11012211 + 11012212.

It is an arithmetic number, because the mean of its divisors is an integer number (11012212).

Almost surely, 2^22024423 is an apocalyptic number.

22024423 is a deficient number, since it is larger than the sum of its proper divisors (1).

22024423 is an equidigital number, since it uses as much as digits as its factorization.

22024423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 22024423 is about 4693.0185382118. The cubic root of 22024423 is about 280.3075829116.

Adding to 22024423 its reverse (32442022), we get a palindrome (54466445).

The spelling of 22024423 in words is "twenty-two million, twenty-four thousand, four hundred twenty-three".