22908423 has 8 divisors (see below), whose sum is σ = 30596848. Its totient is φ = 15246144.

The previous prime is 22908419. The next prime is 22908491. The reversal of 22908423 is 32480922.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22908423 - 2² = 22908419 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 (22908323) 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 in 7 ways as a sum of consecutive naturals, for example, 4390 + ... + 8067.

It is an arithmetic number, because the mean of its divisors is an integer number (3824606).

Almost surely, 2^22908423 is an apocalyptic number.

22908423 is a deficient number, since it is larger than the sum of its proper divisors (7688425).

22908423 is a wasteful number, since it uses less digits than its factorization.

22908423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13073.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 22908423 is about 4786.2744384333. The cubic root of 22908423 is about 284.0087570863.

The spelling of 22908423 in words is "twenty-two million, nine hundred eight thousand, four hundred twenty-three".