281330 has 16 divisors (see below), whose sum is σ = 578880. Its totient is φ = 96432.

The previous prime is 281327. The next prime is 281339. The reversal of 281330 is 33182.

It is a junction number, because it is equal to n+sod(n) for n = 281299 and 281308.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 281330.

It is not an unprimeable number, because it can be changed into a prime (281339) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1940 + ... + 2079.

It is an arithmetic number, because the mean of its divisors is an integer number (36180).

2²⁸¹³³⁰ is an apocalyptic number.

281330 is an abundant number, since it is smaller than the sum of its proper divisors (297550).

It is a weird number, because it is abundant, but not a pseudoperfect number.

281330 is a wasteful number, since it uses less digits than its factorization.

281330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4033.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 281330 is about 530.4055052505. The cubic root of 281330 is about 65.5247463941.

The spelling of 281330 in words is "two hundred eighty-one thousand, three hundred thirty".