42242223 has 8 divisors (see below), whose sum is σ = 56527408. Its totient is φ = 28059264.

The previous prime is 42242173. The next prime is 42242251. The reversal of 42242223 is 32224224.

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

It is not a de Polignac number, because 42242223 - 2⁸ = 42241967 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42242223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42242273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24586 + ... + 26247.

It is an arithmetic number, because the mean of its divisors is an integer number (7065926).

Almost surely, 2^42242223 is an apocalyptic number.

42242223 is a deficient number, since it is larger than the sum of its proper divisors (14285185).

42242223 is a wasteful number, since it uses less digits than its factorization.

42242223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51113.

The product of its digits is 1536, while the sum is 21.

The square root of 42242223 is about 6499.4017416990. The cubic root of 42242223 is about 348.2696169919.

Adding to 42242223 its reverse (32224224), we get a palindrome (74466447).

The spelling of 42242223 in words is "forty-two million, two hundred forty-two thousand, two hundred twenty-three".