281080116 has 72 divisors (see below), whose sum is σ = 729490944. Its totient is φ = 91212480.

The previous prime is 281080109. The next prime is 281080117. The reversal of 281080116 is 611080182.

It is a super-2 number, since 2×281080116² = 158012063221146912, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 281080116.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (281080117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 458226 + ... + 458838.

Almost surely, 2^281080116 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 281080116, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (364745472).

281080116 is an abundant number, since it is smaller than the sum of its proper divisors (448410828).

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

281080116 is a wasteful number, since it uses less digits than its factorization.

281080116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 941 (or 936 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 27.

The square root of 281080116 is about 16765.4441038703. Note that the first 3 decimals coincide. The cubic root of 281080116 is about 655.0534043437.

The spelling of 281080116 in words is "two hundred eighty-one million, eighty thousand, one hundred sixteen".