22002423 has 8 divisors (see below), whose sum is σ = 29463408. Its totient is φ = 14604864.

The previous prime is 22002391. The next prime is 22002433. The reversal of 22002423 is 32420022.

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

It is not a de Polignac number, because 22002423 - 2⁵ = 22002391 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22002433) 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, 15040 + ... + 16437.

It is an arithmetic number, because the mean of its divisors is an integer number (3682926).

Almost surely, 2^22002423 is an apocalyptic number.

22002423 is a deficient number, since it is larger than the sum of its proper divisors (7460985).

22002423 is a wasteful number, since it uses less digits than its factorization.

22002423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31713.

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 22002423 is about 4690.6740453798. The cubic root of 22002423 is about 280.2142195687.

Adding to 22002423 its reverse (32420022), we get a palindrome (54422445).

The spelling of 22002423 in words is "twenty-two million, two thousand, four hundred twenty-three".