188680212 has 192 divisors, whose sum is σ = 605283840. Its totient is φ = 49600512.

The previous prime is 188680189. The next prime is 188680213. The reversal of 188680212 is 212086881.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (188680213) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 681018 + ... + 681294.

It is an arithmetic number, because the mean of its divisors is an integer number (3152520).

Almost surely, 2^188680212 is an apocalyptic number.

188680212 is a gapful number since it is divisible by the number (12) 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 188680212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (302641920).

188680212 is an abundant number, since it is smaller than the sum of its proper divisors (416603628).

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

188680212 is a wasteful number, since it uses less digits than its factorization.

188680212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367 (or 359 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 36.

The square root of 188680212 is about 13736.0915838531. The cubic root of 188680212 is about 573.5555041551. Note that the first 4 decimals are identical.

The spelling of 188680212 in words is "one hundred eighty-eight million, six hundred eighty thousand, two hundred twelve".