188540632 has 48 divisors (see below), whose sum is σ = 421296120. Its totient is φ = 78825600.

The previous prime is 188540621. The next prime is 188540701. The reversal of 188540632 is 236045881.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 188540591 and 188540600.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10207 + ... + 21937.

Almost surely, 2^188540632 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 188540632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (210648060).

188540632 is an abundant number, since it is smaller than the sum of its proper divisors (232755488).

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

188540632 is a wasteful number, since it uses less digits than its factorization.

188540632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11792 (or 11781 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 37.

The square root of 188540632 is about 13731.0098681779. The cubic root of 188540632 is about 573.4140361729.

The spelling of 188540632 in words is "one hundred eighty-eight million, five hundred forty thousand, six hundred thirty-two".