188379216 has 80 divisors (see below), whose sum is σ = 553347520. Its totient is φ = 61326720.

The previous prime is 188379211. The next prime is 188379239. The reversal of 188379216 is 612973881.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (188379211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13506 + ... + 23646.

It is an arithmetic number, because the mean of its divisors is an integer number (6916844).

Almost surely, 2^188379216 is an apocalyptic number.

188379216 is a gapful number since it is divisible by the number (16) 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 188379216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (276673760).

188379216 is an abundant number, since it is smaller than the sum of its proper divisors (364968304).

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

188379216 is a wasteful number, since it uses less digits than its factorization.

188379216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10201 (or 10189 counting only the distinct ones).

The product of its digits is 145152, while the sum is 45.

The square root of 188379216 is about 13725.1308190487. The cubic root of 188379216 is about 573.2503497467.

The spelling of 188379216 in words is "one hundred eighty-eight million, three hundred seventy-nine thousand, two hundred sixteen".