281080332 has 72 divisors (see below), whose sum is σ = 798461664. Its totient is φ = 82722816.

The previous prime is 281080321. The next prime is 281080339. The reversal of 281080332 is 233080182.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 281080296 and 281080305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (281080339) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2293 + ... + 23820.

Almost surely, 2^281080332 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 281080332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (399230832).

281080332 is an abundant number, since it is smaller than the sum of its proper divisors (517381332).

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

281080332 is a wasteful number, since it uses less digits than its factorization.

281080332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26159 (or 26154 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 281080332 is about 16765.4505456907. The cubic root of 281080332 is about 655.0535721386.

The spelling of 281080332 in words is "two hundred eighty-one million, eighty thousand, three hundred thirty-two".