22007423 has 8 divisors (see below), whose sum is σ = 22449792. Its totient is φ = 21568536.

The previous prime is 22007417. The next prime is 22007437. The reversal of 22007423 is 32470022.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 22007423 - 2⁴ = 22007407 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22007395 and 22007404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22007023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14486 + ... + 15932.

It is an arithmetic number, because the mean of its divisors is an integer number (2806224).

Almost surely, 2^22007423 is an apocalyptic number.

22007423 is a deficient number, since it is larger than the sum of its proper divisors (442369).

22007423 is a wasteful number, since it uses less digits than its factorization.

22007423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1741.

The product of its (nonzero) digits is 672, while the sum is 20.

The square root of 22007423 is about 4691.2069875460. The cubic root of 22007423 is about 280.2354439732.

Adding to 22007423 its reverse (32470022), we get a palindrome (54477445).

The spelling of 22007423 in words is "twenty-two million, seven thousand, four hundred twenty-three".