190918 has 16 divisors (see below), whose sum is σ = 352800. Its totient is φ = 75456.

The previous prime is 190913. The next prime is 190921. The reversal of 190918 is 819091.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190913) by changing a digit.

190918 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 343 + ... + 706.

It is an arithmetic number, because the mean of its divisors is an integer number (22050).

2¹⁹⁰⁹¹⁸ is an apocalyptic number.

190918 is a deficient number, since it is larger than the sum of its proper divisors (161882).

190918 is a wasteful number, since it uses less digits than its factorization.

190918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071.

The product of its (nonzero) digits is 648, while the sum is 28.

The square root of 190918 is about 436.9416437008. The cubic root of 190918 is about 57.5814095741.

The spelling of 190918 in words is "one hundred ninety thousand, nine hundred eighteen".