220424023 has 4 divisors (see below), whose sum is σ = 233390160. Its totient is φ = 207457888.

The previous prime is 220423999. The next prime is 220424027. The reversal of 220424023 is 320424022.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 320424022 = 2 ⋅160212011.

It is a cyclic number.

It is not a de Polignac number, because 220424023 - 2⁵ = 220423991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220424027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6483043 + ... + 6483076.

It is an arithmetic number, because the mean of its divisors is an integer number (58347540).

Almost surely, 2^220424023 is an apocalyptic number.

220424023 is a deficient number, since it is larger than the sum of its proper divisors (12966137).

220424023 is a wasteful number, since it uses less digits than its factorization.

220424023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12966136.

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

The square root of 220424023 is about 14846.6839058424. The cubic root of 220424023 is about 604.0686651684.

Adding to 220424023 its reverse (320424022), we get a palindrome (540848045).

Subtracting 220424023 from its reverse (320424022), we obtain a palindrome (99999999).

The spelling of 220424023 in words is "two hundred twenty million, four hundred twenty-four thousand, twenty-three".