42242235 has 16 divisors (see below), whose sum is σ = 77243136. Its totient is φ = 19310688.

The previous prime is 42242173. The next prime is 42242251. The reversal of 42242235 is 53224224.

It is a happy number.

It is not a de Polignac number, because 42242235 - 2⁹ = 42241723 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, 201049 + ... + 201258.

It is an arithmetic number, because the mean of its divisors is an integer number (4827696).

Almost surely, 2^42242235 is an apocalyptic number.

42242235 is a deficient number, since it is larger than the sum of its proper divisors (35000901).

42242235 is a wasteful number, since it uses less digits than its factorization.

42242235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402322.

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

The square root of 42242235 is about 6499.4026648608. The cubic root of 42242235 is about 348.2696499703.

Adding to 42242235 its reverse (53224224), we get a palindrome (95466459).

The spelling of 42242235 in words is "forty-two million, two hundred forty-two thousand, two hundred thirty-five".