17968942 has 4 divisors (see below), whose sum is σ = 26953416. Its totient is φ = 8984470.

The previous prime is 17968903. The next prime is 17968967. The reversal of 17968942 is 24986971.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 17968892 and 17968901.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4492234 + ... + 4492237.

It is an arithmetic number, because the mean of its divisors is an integer number (6738354).

Almost surely, 2^17968942 is an apocalyptic number.

17968942 is a deficient number, since it is larger than the sum of its proper divisors (8984474).

17968942 is an equidigital number, since it uses as much as digits as its factorization.

17968942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8984473.

The product of its digits is 217728, while the sum is 46.

The square root of 17968942 is about 4238.9788864773. The cubic root of 17968942 is about 261.9233211888.

The spelling of 17968942 in words is "seventeen million, nine hundred sixty-eight thousand, nine hundred forty-two".