17938142 has 8 divisors (see below), whose sum is σ = 26949216. Its totient is φ = 8955072.

The previous prime is 17938117. The next prime is 17938157. The reversal of 17938142 is 24183971.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5318 + ... + 8009.

It is an arithmetic number, because the mean of its divisors is an integer number (3368652).

Almost surely, 2^17938142 is an apocalyptic number.

17938142 is a deficient number, since it is larger than the sum of its proper divisors (9011074).

17938142 is a wasteful number, since it uses less digits than its factorization.

17938142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14002.

The product of its digits is 12096, while the sum is 35.

The square root of 17938142 is about 4235.3443779698. The cubic root of 17938142 is about 261.7735840859.

The spelling of 17938142 in words is "seventeen million, nine hundred thirty-eight thousand, one hundred forty-two".