42234443 has 4 divisors (see below), whose sum is σ = 44718840. Its totient is φ = 39750048.

The previous prime is 42234433. The next prime is 42234449. The reversal of 42234443 is 34443224.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42234443 - 2¹⁰ = 42233419 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42234449) 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 3 ways as a sum of consecutive naturals, for example, 1242173 + ... + 1242206.

It is an arithmetic number, because the mean of its divisors is an integer number (11179710).

Almost surely, 2^42234443 is an apocalyptic number.

42234443 is a deficient number, since it is larger than the sum of its proper divisors (2484397).

42234443 is a wasteful number, since it uses less digits than its factorization.

42234443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2484396.

The product of its digits is 9216, while the sum is 26.

The square root of 42234443 is about 6498.8031975126. The cubic root of 42234443 is about 348.2482347209.

Adding to 42234443 its reverse (34443224), we get a palindrome (76677667).

The spelling of 42234443 in words is "forty-two million, two hundred thirty-four thousand, four hundred forty-three".