189941406 has 32 divisors (see below), whose sum is σ = 405630720. Its totient is φ = 59150784.

The previous prime is 189941399. The next prime is 189941407. The reversal of 189941406 is 604149981.

189941406 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189941407) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10071 + ... + 21938.

It is an arithmetic number, because the mean of its divisors is an integer number (12675960).

Almost surely, 2^189941406 is an apocalyptic number.

189941406 is an abundant number, since it is smaller than the sum of its proper divisors (215689314).

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

189941406 is a wasteful number, since it uses less digits than its factorization.

189941406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32080.

The product of its (nonzero) digits is 62208, while the sum is 42.

The square root of 189941406 is about 13781.9231604301. The cubic root of 189941406 is about 574.8306051737.

The spelling of 189941406 in words is "one hundred eighty-nine million, nine hundred forty-one thousand, four hundred six".