22020423 has 16 divisors (see below), whose sum is σ = 31370976. Its totient is φ = 13690880.

The previous prime is 22020419. The next prime is 22020431. The reversal of 22020423 is 32402022.

It is a cyclic number.

It is not a de Polignac number, because 22020423 - 2² = 22020419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22020413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3853 + ... + 7673.

It is an arithmetic number, because the mean of its divisors is an integer number (1960686).

Almost surely, 2^22020423 is an apocalyptic number.

22020423 is a deficient number, since it is larger than the sum of its proper divisors (9350553).

22020423 is a wasteful number, since it uses less digits than its factorization.

22020423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3954.

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

The square root of 22020423 is about 4692.5923539127. The cubic root of 22020423 is about 280.2906123843.

Adding to 22020423 its reverse (32402022), we get a palindrome (54422445).

The spelling of 22020423 in words is "twenty-two million, twenty thousand, four hundred twenty-three".