189000190 has 16 divisors (see below), whose sum is σ = 340663392. Its totient is φ = 75497184.

The previous prime is 189000167. The next prime is 189000197. The reversal of 189000190 is 91000981.

It is a super-2 number, since 2×189000190² = 71442143640072200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189000197) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4914 + ... + 20053.

It is an arithmetic number, because the mean of its divisors is an integer number (21291462).

Almost surely, 2^189000190 is an apocalyptic number.

189000190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

189000190 is a deficient number, since it is larger than the sum of its proper divisors (151663202).

189000190 is a wasteful number, since it uses less digits than its factorization.

189000190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25731.

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

The square root of 189000190 is about 13747.7339950990. The cubic root of 189000190 is about 573.8795471369.

The spelling of 189000190 in words is "one hundred eighty-nine million, one hundred ninety", and thus it is an aban number.