189199446 has 16 divisors (see below), whose sum is σ = 379214784. Its totient is φ = 62930504.

The previous prime is 189199427. The next prime is 189199447. The reversal of 189199446 is 644991981.

189199446 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189199447) 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, 30960 + ... + 36563.

It is an arithmetic number, because the mean of its divisors is an integer number (23700924).

Almost surely, 2^189199446 is an apocalyptic number.

189199446 is an abundant number, since it is smaller than the sum of its proper divisors (190015338).

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

189199446 is a wasteful number, since it uses less digits than its factorization.

189199446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67995.

The product of its digits is 559872, while the sum is 51.

The square root of 189199446 is about 13754.9789530919. The cubic root of 189199446 is about 574.0811497242.

The spelling of 189199446 in words is "one hundred eighty-nine million, one hundred ninety-nine thousand, four hundred forty-six".