281412 has 18 divisors (see below), whose sum is σ = 711438. Its totient is φ = 93792.

The previous prime is 281381. The next prime is 281419. The reversal of 281412 is 214182.

281412 is nontrivially palindromic in base 16.

It can be written as a sum of positive squares in only one way, i.e., 147456 + 133956 = 384^2 + 366^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a zygodrome in base 5.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 281412.

It is not an unprimeable number, because it can be changed into a prime (281419) by changing a digit.

281412 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3873 + ... + 3944.

2²⁸¹⁴¹² is an apocalyptic number.

It is an amenable number.

281412 is an abundant number, since it is smaller than the sum of its proper divisors (430026).

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

281412 is a wasteful number, since it uses less digits than its factorization.

281412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7827 (or 7822 counting only the distinct ones).

The product of its digits is 128, while the sum is 18.

The square root of 281412 is about 530.4827989671. The cubic root of 281412 is about 65.5311119994.

Adding to 281412 its reverse (214182), we get a palindrome (495594).

The spelling of 281412 in words is "two hundred eighty-one thousand, four hundred twelve".