42223223 has 16 divisors (see below), whose sum is σ = 51379200. Its totient is φ = 33872256.

The previous prime is 42223213. The next prime is 42223229. The reversal of 42223223 is 32232224.

It is a cyclic number.

It is not a de Polignac number, because 42223223 - 2¹⁸ = 41961079 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42223195 and 42223204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42223229) 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, 22790 + ... + 24572.

It is an arithmetic number, because the mean of its divisors is an integer number (3211200).

Almost surely, 2^42223223 is an apocalyptic number.

42223223 is a deficient number, since it is larger than the sum of its proper divisors (9155977).

42223223 is a wasteful number, since it uses less digits than its factorization.

42223223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2006.

The product of its digits is 1152, while the sum is 20.

The square root of 42223223 is about 6497.9399043081. The cubic root of 42223223 is about 348.2173934535.

Adding to 42223223 its reverse (32232224), we get a palindrome (74455447).

Subtracting from 42223223 its reverse (32232224), we obtain a palindrome (9990999).

The spelling of 42223223 in words is "forty-two million, two hundred twenty-three thousand, two hundred twenty-three".