190190 has 64 divisors (see below), whose sum is σ = 483840. Its totient is φ = 51840.

The previous prime is 190181. The next prime is 190207. The reversal of 190190 is 91091.

190190 is an esthetic number in base 4, because in such base its adjacent digits differ by 1.

It is a super-2 number, since 2×190190² = 72344472200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10001 + ... + 10019.

It is an arithmetic number, because the mean of its divisors is an integer number (7560).

2¹⁹⁰¹⁹⁰ is an apocalyptic number.

190190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

190190 is an abundant number, since it is smaller than the sum of its proper divisors (293650).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

190190 is a wasteful number, since it uses less digits than its factorization.

190190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57.

The product of its (nonzero) digits is 81, while the sum is 20.

The square root of 190190 is about 436.1077848422. The cubic root of 190190 is about 57.5081273956.

Subtracting from 190190 its reverse (91091), we obtain a palindrome (99099).

It can be divided in two parts, 1901 and 90, that added together give a palindrome (1991).

The spelling of 190190 in words is "one hundred ninety thousand, one hundred ninety".