19000190 has 32 divisors (see below), whose sum is σ = 39277440. Its totient is φ = 6544800.

The previous prime is 19000187. The next prime is 19000213. The reversal of 19000190 is 9100091.

It is a super-2 number, since 2×19000190² = 722014440072200, 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 15 ways as a sum of consecutive naturals, for example, 2456 + ... + 6635.

It is an arithmetic number, because the mean of its divisors is an integer number (1227420).

Almost surely, 2^19000190 is an apocalyptic number.

19000190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19000190 is an abundant number, since it is smaller than the sum of its proper divisors (20277250).

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

19000190 is a wasteful number, since it uses less digits than its factorization.

19000190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9128.

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

The square root of 19000190 is about 4358.9207379809. The cubic root of 19000190 is about 266.8410543364.

Subtracting from 19000190 its reverse (9100091), we obtain a palindrome (9900099).

It can be divided in two parts, 190001 and 90, that added together give a palindrome (190091).

The spelling of 19000190 in words is "nineteen million, one hundred ninety", and thus it is an aban number.