17842242 has 16 divisors (see below), whose sum is σ = 38928672. Its totient is φ = 5406720.

The previous prime is 17842241. The next prime is 17842243. The reversal of 17842242 is 24224871.

It is an interprime number because it is at equal distance from previous prime (17842241) and next prime (17842243).

It is not an unprimeable number, because it can be changed into a prime (17842241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135103 + ... + 135234.

It is an arithmetic number, because the mean of its divisors is an integer number (2433042).

Almost surely, 2^17842242 is an apocalyptic number.

17842242 is an abundant number, since it is smaller than the sum of its proper divisors (21086430).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

17842242 is a wasteful number, since it uses less digits than its factorization.

17842242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270353.

The product of its digits is 7168, while the sum is 30.

The square root of 17842242 is about 4224.0078124928. The cubic root of 17842242 is about 261.3062566670.

The spelling of 17842242 in words is "seventeen million, eight hundred forty-two thousand, two hundred forty-two".