189628430 has 8 divisors (see below), whose sum is σ = 341331192. Its totient is φ = 75851368.

The previous prime is 189628427. The next prime is 189628447. The reversal of 189628430 is 34826981.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9481412 + ... + 9481431.

It is an arithmetic number, because the mean of its divisors is an integer number (42666399).

Almost surely, 2^189628430 is an apocalyptic number.

189628430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

189628430 is a deficient number, since it is larger than the sum of its proper divisors (151702762).

189628430 is a wasteful number, since it uses less digits than its factorization.

189628430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18962850.

The product of its (nonzero) digits is 82944, while the sum is 41.

The square root of 189628430 is about 13770.5638954983. The cubic root of 189628430 is about 574.5147058438.

The spelling of 189628430 in words is "one hundred eighty-nine million, six hundred twenty-eight thousand, four hundred thirty".