188949488 has 60 divisors (see below), whose sum is σ = 458642520. Its totient is φ = 74745216.

The previous prime is 188949479. The next prime is 188949517. The reversal of 188949488 is 884949881.

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 11 ways as a sum of consecutive naturals, for example, 923 + ... + 19461.

It is an arithmetic number, because the mean of its divisors is an integer number (7644042).

Almost surely, 2^188949488 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 188949488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (229321260).

188949488 is an abundant number, since it is smaller than the sum of its proper divisors (269693032).

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

188949488 is a wasteful number, since it uses less digits than its factorization.

188949488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18574 (or 18561 counting only the distinct ones).

The product of its digits is 5308416, while the sum is 59.

The square root of 188949488 is about 13745.8898584268. The cubic root of 188949488 is about 573.8282254194.

It can be divided in two parts, 18894 and 9488, that added together give a palindrome (28382).

The spelling of 188949488 in words is "one hundred eighty-eight million, nine hundred forty-nine thousand, four hundred eighty-eight".