188480136 has 64 divisors (see below), whose sum is σ = 508878720. Its totient is φ = 57830400.

The previous prime is 188480129. The next prime is 188480141. The reversal of 188480136 is 631084881.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 188480094 and 188480103.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 156336 + ... + 157536.

It is an arithmetic number, because the mean of its divisors is an integer number (7951230).

Almost surely, 2^188480136 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 188480136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (254439360).

188480136 is an abundant number, since it is smaller than the sum of its proper divisors (320398584).

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

188480136 is a wasteful number, since it uses less digits than its factorization.

188480136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1726 (or 1722 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 39.

The square root of 188480136 is about 13728.8067944742. The cubic root of 188480136 is about 573.3527002051.

The spelling of 188480136 in words is "one hundred eighty-eight million, four hundred eighty thousand, one hundred thirty-six".