42238238 has 32 divisors (see below), whose sum is σ = 75451584. Its totient is φ = 17356032.

The previous prime is 42238237. The next prime is 42238249. The reversal of 42238238 is 83283224.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42238237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37256 + ... + 38372.

It is an arithmetic number, because the mean of its divisors is an integer number (2357862).

Almost surely, 2^42238238 is an apocalyptic number.

42238238 is a deficient number, since it is larger than the sum of its proper divisors (33213346).

42238238 is a wasteful number, since it uses less digits than its factorization.

42238238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1236.

The product of its digits is 18432, while the sum is 32.

The square root of 42238238 is about 6499.0951677907. The cubic root of 42238238 is about 348.2586650899.

The spelling of 42238238 in words is "forty-two million, two hundred thirty-eight thousand, two hundred thirty-eight".