189848988 has 96 divisors (see below), whose sum is σ = 592166400. Its totient is φ = 51383808.

The previous prime is 189848987. The next prime is 189849029. The reversal of 189848988 is 889848981.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189848987) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7756 + ... + 20972.

It is an arithmetic number, because the mean of its divisors is an integer number (6168400).

Almost surely, 2^189848988 is an apocalyptic number.

189848988 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 189848988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (296083200).

189848988 is an abundant number, since it is smaller than the sum of its proper divisors (402317412).

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

189848988 is a wasteful number, since it uses less digits than its factorization.

189848988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13256 (or 13248 counting only the distinct ones).

The product of its digits is 10616832, while the sum is 63.

The square root of 189848988 is about 13778.5698822483. The cubic root of 189848988 is about 574.7373600787.

It can be divided in two parts, 18984 and 8988, that added together give a palindrome (27972).

The spelling of 189848988 in words is "one hundred eighty-nine million, eight hundred forty-eight thousand, nine hundred eighty-eight".