190318 has 8 divisors (see below), whose sum is σ = 292248. Its totient is φ = 92904.

The previous prime is 190313. The next prime is 190321. The reversal of 190318 is 813091.

190318 is nontrivially palindromic in base 4.

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

It is a super-2 number, since 2×190318² = 72441882248, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190313) by changing a digit.

190318 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 3 ways as a sum of consecutive naturals, for example, 1021 + ... + 1192.

It is an arithmetic number, because the mean of its divisors is an integer number (36531).

2¹⁹⁰³¹⁸ is an apocalyptic number.

190318 is a deficient number, since it is larger than the sum of its proper divisors (101930).

190318 is a wasteful number, since it uses less digits than its factorization.

190318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2258.

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 190318 is about 436.2545128706. The cubic root of 190318 is about 57.5210257071.

The spelling of 190318 in words is "one hundred ninety thousand, three hundred eighteen".