190869 has 16 divisors (see below), whose sum is σ = 297600. Its totient is φ = 106560.

The previous prime is 190843. The next prime is 190871. The reversal of 190869 is 968091.

It is a happy number.

It is not a de Polignac number, because 190869 - 2⁵ = 190837 is a prime.

It is a super-2 number, since 2×190869² = 72861950322, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190829) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1207 + ... + 1355.

It is an arithmetic number, because the mean of its divisors is an integer number (18600).

2¹⁹⁰⁸⁶⁹ is an apocalyptic number.

It is an amenable number.

190869 is a deficient number, since it is larger than the sum of its proper divisors (106731).

190869 is a wasteful number, since it uses less digits than its factorization.

190869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220.

The product of its (nonzero) digits is 3888, while the sum is 33.

The square root of 190869 is about 436.8855685417. The cubic root of 190869 is about 57.5764829730.

The spelling of 190869 in words is "one hundred ninety thousand, eight hundred sixty-nine".