188226830 has 16 divisors (see below), whose sum is σ = 369609264. Its totient is φ = 68446080.

The previous prime is 188226817. The next prime is 188226847. The reversal of 188226830 is 38622881.

It is a congruent number.

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, 855467 + ... + 855686.

It is an arithmetic number, because the mean of its divisors is an integer number (23100579).

Almost surely, 2^188226830 is an apocalyptic number.

188226830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

188226830 is a deficient number, since it is larger than the sum of its proper divisors (181382434).

188226830 is a wasteful number, since it uses less digits than its factorization.

188226830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1711171.

The product of its (nonzero) digits is 36864, while the sum is 38.

The square root of 188226830 is about 13719.5783462904. The cubic root of 188226830 is about 573.0957345065.

It can be divided in two parts, 18822 and 6830, that added together give a palindrome (25652).

The spelling of 188226830 in words is "one hundred eighty-eight million, two hundred twenty-six thousand, eight hundred thirty".