189210814 has 32 divisors (see below), whose sum is σ = 316947456. Its totient is φ = 84157920.

The previous prime is 189210757. The next prime is 189210821. The reversal of 189210814 is 418012981.

189210814 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 self number, because there is not a number n which added to its sum of digits gives 189210814.

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, 80719 + ... + 83029.

It is an arithmetic number, because the mean of its divisors is an integer number (9904608).

Almost surely, 2^189210814 is an apocalyptic number.

189210814 is a deficient number, since it is larger than the sum of its proper divisors (127736642).

189210814 is a wasteful number, since it uses less digits than its factorization.

189210814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2440.

The product of its (nonzero) digits is 4608, while the sum is 34.

The square root of 189210814 is about 13755.3921790693. The cubic root of 189210814 is about 574.0926473333.

The spelling of 189210814 in words is "one hundred eighty-nine million, two hundred ten thousand, eight hundred fourteen".