22736423 has 4 divisors (see below), whose sum is σ = 23469888. Its totient is φ = 22002960.

The previous prime is 22736359. The next prime is 22736447. The reversal of 22736423 is 32463722.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22736423 - 2⁶ = 22736359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22736453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 366686 + ... + 366747.

It is an arithmetic number, because the mean of its divisors is an integer number (5867472).

Almost surely, 2^22736423 is an apocalyptic number.

22736423 is a deficient number, since it is larger than the sum of its proper divisors (733465).

22736423 is an equidigital number, since it uses as much as digits as its factorization.

22736423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 733464.

The product of its digits is 12096, while the sum is 29.

The square root of 22736423 is about 4768.2725383518. The cubic root of 22736423 is about 283.2961767499.

The spelling of 22736423 in words is "twenty-two million, seven hundred thirty-six thousand, four hundred twenty-three".