188909230430 has 16 divisors (see below), whose sum is σ = 345610986624. Its totient is φ = 74324942880.

The previous prime is 188909230429. The next prime is 188909230457. The reversal of 188909230430 is 34032909881.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154843022 + ... + 154844241.

It is an arithmetic number, because the mean of its divisors is an integer number (21600686664).

Almost surely, 2^188909230430 is an apocalyptic number.

188909230430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

188909230430 is a deficient number, since it is larger than the sum of its proper divisors (156701756194).

188909230430 is a wasteful number, since it uses less digits than its factorization.

188909230430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309687331.

The product of its (nonzero) digits is 373248, while the sum is 47.

The spelling of 188909230430 in words is "one hundred eighty-eight billion, nine hundred nine million, two hundred thirty thousand, four hundred thirty".