42224235 has 16 divisors (see below), whose sum is σ = 68705280. Its totient is φ = 22137440.

The previous prime is 42224227. The next prime is 42224249. The reversal of 42224235 is 53242224.

It is a happy number.

It is not a de Polignac number, because 42224235 - 2³ = 42224227 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 22971 + ... + 24740.

It is an arithmetic number, because the mean of its divisors is an integer number (4294080).

Almost surely, 2^42224235 is an apocalyptic number.

42224235 is a deficient number, since it is larger than the sum of its proper divisors (26481045).

42224235 is a wasteful number, since it uses less digits than its factorization.

42224235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47778.

The product of its digits is 3840, while the sum is 24.

The square root of 42224235 is about 6498.0177746756. The cubic root of 42224235 is about 348.2201754390.

Adding to 42224235 its reverse (53242224), we get a palindrome (95466459).

The spelling of 42224235 in words is "forty-two million, two hundred twenty-four thousand, two hundred thirty-five".