281384229 has 24 divisors (see below), whose sum is σ = 432212160. Its totient is φ = 159511680.

The previous prime is 281384203. The next prime is 281384249. The reversal of 281384229 is 922483182.

It is not a de Polignac number, because 281384229 - 2¹² = 281380133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (281384249) 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, 687777 + ... + 688185.

It is an arithmetic number, because the mean of its divisors is an integer number (18008840).

Almost surely, 2^281384229 is an apocalyptic number.

It is an amenable number.

281384229 is a deficient number, since it is larger than the sum of its proper divisors (150827931).

281384229 is an equidigital number, since it uses as much as digits as its factorization.

281384229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 781 (or 600 counting only the distinct ones).

The product of its digits is 55296, while the sum is 39.

The square root of 281384229 is about 16774.5112894534. The cubic root of 281384229 is about 655.2895629369.

The spelling of 281384229 in words is "two hundred eighty-one million, three hundred eighty-four thousand, two hundred twenty-nine".