22994423 has 2 divisors, whose sum is σ = 22994424. Its totient is φ = 22994422.

The previous prime is 22994417. The next prime is 22994437. The reversal of 22994423 is 32449922.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22994423 - 2⁶ = 22994359 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22994443) 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, 11497211 + 11497212.

It is an arithmetic number, because the mean of its divisors is an integer number (11497212).

Almost surely, 2^22994423 is an apocalyptic number.

22994423 is a deficient number, since it is larger than the sum of its proper divisors (1).

22994423 is an equidigital number, since it uses as much as digits as its factorization.

22994423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31104, while the sum is 35.

The square root of 22994423 is about 4795.2500456181. The cubic root of 22994423 is about 284.3637102631.

The spelling of 22994423 in words is "twenty-two million, nine hundred ninety-four thousand, four hundred twenty-three".