42133223 has 8 divisors (see below), whose sum is σ = 46481040. Its totient is φ = 37871680.

The previous prime is 42133219. The next prime is 42133229. The reversal of 42133223 is 32233124.

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

It is not a de Polignac number, because 42133223 - 2² = 42133219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42133195 and 42133204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42133229) 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, 20540 + ... + 22497.

It is an arithmetic number, because the mean of its divisors is an integer number (5810130).

Almost surely, 2^42133223 is an apocalyptic number.

42133223 is a deficient number, since it is larger than the sum of its proper divisors (4347817).

42133223 is a wasteful number, since it uses less digits than its factorization.

42133223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43137.

The product of its digits is 864, while the sum is 20.

The square root of 42133223 is about 6491.0109382129. The cubic root of 42133223 is about 347.9698056993.

Adding to 42133223 its reverse (32233124), we get a palindrome (74366347).

Subtracting from 42133223 its reverse (32233124), we obtain a palindrome (9900099).

The spelling of 42133223 in words is "forty-two million, one hundred thirty-three thousand, two hundred twenty-three".