17138242 has 8 divisors (see below), whose sum is σ = 28044432. Its totient is φ = 7790100.

The previous prime is 17138237. The next prime is 17138263. The reversal of 17138242 is 24283171.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 17138242.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 389484 + ... + 389527.

It is an arithmetic number, because the mean of its divisors is an integer number (3505554).

Almost surely, 2^17138242 is an apocalyptic number.

17138242 is a deficient number, since it is larger than the sum of its proper divisors (10906190).

17138242 is a wasteful number, since it uses less digits than its factorization.

17138242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 779024.

The product of its digits is 2688, while the sum is 28.

The square root of 17138242 is about 4139.8359870893. The cubic root of 17138242 is about 257.8232569518.

Subtracting 17138242 from its reverse (24283171), we obtain a square (7144929 = 2673²).

The spelling of 17138242 in words is "seventeen million, one hundred thirty-eight thousand, two hundred forty-two".