42239186 has 16 divisors (see below), whose sum is σ = 73185120. Its totient is φ = 18070080.

The previous prime is 42239179. The next prime is 42239191. The reversal of 42239186 is 68193224.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56096 + ... + 56843.

It is an arithmetic number, because the mean of its divisors is an integer number (4574070).

Almost surely, 2^42239186 is an apocalyptic number.

42239186 is a deficient number, since it is larger than the sum of its proper divisors (30945934).

42239186 is a wasteful number, since it uses less digits than its factorization.

42239186 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112969.

The product of its digits is 20736, while the sum is 35.

The square root of 42239186 is about 6499.1681006110. The cubic root of 42239186 is about 348.2612705232.

The spelling of 42239186 in words is "forty-two million, two hundred thirty-nine thousand, one hundred eighty-six".