186430146 has 16 divisors (see below), whose sum is σ = 426126144. Its totient is φ = 53265744.

The previous prime is 186430133. The next prime is 186430151. The reversal of 186430146 is 641034681.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2219365 + ... + 2219448.

It is an arithmetic number, because the mean of its divisors is an integer number (26632884).

Almost surely, 2^186430146 is an apocalyptic number.

186430146 is an abundant number, since it is smaller than the sum of its proper divisors (239695998).

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

186430146 is a wasteful number, since it uses less digits than its factorization.

186430146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4438825.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 186430146 is about 13653.9425075690. The cubic root of 186430146 is about 571.2664423315.

The spelling of 186430146 in words is "one hundred eighty-six million, four hundred thirty thousand, one hundred forty-six".