220024423 has 2 divisors, whose sum is σ = 220024424. Its totient is φ = 220024422.

The previous prime is 220024397. The next prime is 220024433. The reversal of 220024423 is 324420022.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 220024423 - 2²¹ = 217927271 is a prime.

It is a plaindrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 220024423.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220024433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110012211 + 110012212.

It is an arithmetic number, because the mean of its divisors is an integer number (110012212).

Almost surely, 2^220024423 is an apocalyptic number.

220024423 is a deficient number, since it is larger than the sum of its proper divisors (1).

220024423 is an equidigital number, since it uses as much as digits as its factorization.

220024423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 220024423 is about 14833.2202505053. The cubic root of 220024423 is about 603.7034117969.

Adding to 220024423 its reverse (324420022), we get a palindrome (544444445).

The spelling of 220024423 in words is "two hundred twenty million, twenty-four thousand, four hundred twenty-three".