42312223 has 8 divisors (see below), whose sum is σ = 43189200. Its totient is φ = 41441280.

The previous prime is 42312217. The next prime is 42312239. The reversal of 42312223 is 32221324.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42312223 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 42312223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42312323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14328 + ... + 17026.

It is an arithmetic number, because the mean of its divisors is an integer number (5398650).

Almost surely, 2^42312223 is an apocalyptic number.

42312223 is a deficient number, since it is larger than the sum of its proper divisors (876977).

42312223 is a wasteful number, since it uses less digits than its factorization.

42312223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3017.

The product of its digits is 576, while the sum is 19.

The square root of 42312223 is about 6504.7846236444. The cubic root of 42312223 is about 348.4618844887.

Adding to 42312223 its reverse (32221324), we get a palindrome (74533547).

The spelling of 42312223 in words is "forty-two million, three hundred twelve thousand, two hundred twenty-three".