189853910 has 16 divisors (see below), whose sum is σ = 345578400. Its totient is φ = 75087936.

The previous prime is 189853883. The next prime is 189853921. The reversal of 189853910 is 19358981.

It is a happy number.

189853910 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105770 + ... + 107549.

It is an arithmetic number, because the mean of its divisors is an integer number (21598650).

Almost surely, 2^189853910 is an apocalyptic number.

189853910 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

189853910 is a deficient number, since it is larger than the sum of its proper divisors (155724490).

189853910 is a wasteful number, since it uses less digits than its factorization.

189853910 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213415.

The product of its (nonzero) digits is 77760, while the sum is 44.

The square root of 189853910 is about 13778.7484917898. The cubic root of 189853910 is about 574.7423268910.

The spelling of 189853910 in words is "one hundred eighty-nine million, eight hundred fifty-three thousand, nine hundred ten".