22302423 has 72 divisors (see below), whose sum is σ = 40195584. Its totient is φ = 11793600.

The previous prime is 22302391. The next prime is 22302431. The reversal of 22302423 is 32420322.

It is not a de Polignac number, because 22302423 - 2⁵ = 22302391 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22302396 and 22302405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22302463) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 518640 + ... + 518682.

It is an arithmetic number, because the mean of its divisors is an integer number (558272).

Almost surely, 2^22302423 is an apocalyptic number.

22302423 is a deficient number, since it is larger than the sum of its proper divisors (17893161).

22302423 is a wasteful number, since it uses less digits than its factorization.

22302423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117 (or 101 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 22302423 is about 4722.5441236689. The cubic root of 22302423 is about 281.4820354776.

Adding to 22302423 its reverse (32420322), we get a palindrome (54722745).

The spelling of 22302423 in words is "twenty-two million, three hundred two thousand, four hundred twenty-three".