22415423 has 2 divisors, whose sum is σ = 22415424. Its totient is φ = 22415422.

The previous prime is 22415417. The next prime is 22415447. The reversal of 22415423 is 32451422.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22415423 - 2⁶ = 22415359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22415413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11207711 + 11207712.

It is an arithmetic number, because the mean of its divisors is an integer number (11207712).

Almost surely, 2^22415423 is an apocalyptic number.

22415423 is a deficient number, since it is larger than the sum of its proper divisors (1).

22415423 is an equidigital number, since it uses as much as digits as its factorization.

22415423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1920, while the sum is 23.

The square root of 22415423 is about 4734.4928978720. The cubic root of 22415423 is about 281.9566311591.

Adding to 22415423 its reverse (32451422), we get a palindrome (54866845).

The spelling of 22415423 in words is "twenty-two million, four hundred fifteen thousand, four hundred twenty-three".