188869120 has 160 divisors (see below), whose sum is σ = 521484480. Its totient is φ = 64880640.

The previous prime is 188869097. The next prime is 188869129. The reversal of 188869120 is 21968881.

It is a tau number, because it is divible by the number of its divisors (160).

It is not an unprimeable number, because it can be changed into a prime (188869129) 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, 534864 + ... + 535216.

It is an arithmetic number, because the mean of its divisors is an integer number (3259278).

Almost surely, 2^188869120 is an apocalyptic number.

188869120 is a gapful number since it is divisible by the number (10) 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 188869120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (260742240).

188869120 is an abundant number, since it is smaller than the sum of its proper divisors (332615360).

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

188869120 is a wasteful number, since it uses less digits than its factorization.

188869120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406 (or 390 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 43.

The square root of 188869120 is about 13742.9662009335. The cubic root of 188869120 is about 573.7468562884.

The spelling of 188869120 in words is "one hundred eighty-eight million, eight hundred sixty-nine thousand, one hundred twenty".