163881232 has 40 divisors (see below), whose sum is σ = 339933600. Its totient is φ = 76303872.

The previous prime is 163881229. The next prime is 163881253. The reversal of 163881232 is 232188361.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13368 + ... + 22504.

It is an arithmetic number, because the mean of its divisors is an integer number (8498340).

Almost surely, 2^163881232 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 163881232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (169966800).

163881232 is an abundant number, since it is smaller than the sum of its proper divisors (176052368).

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

163881232 is a wasteful number, since it uses less digits than its factorization.

163881232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9223 (or 9217 counting only the distinct ones).

The product of its digits is 13824, while the sum is 34.

The square root of 163881232 is about 12801.6105236802. The cubic root of 163881232 is about 547.2382012533.

The spelling of 163881232 in words is "one hundred sixty-three million, eight hundred eighty-one thousand, two hundred thirty-two".