440281 has 2 divisors, whose sum is σ = 440282. Its totient is φ = 440280.

The previous prime is 440269. The next prime is 440303. The reversal of 440281 is 182044.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 341056 + 99225 = 584^2 + 315^2 .

It is a cyclic number.

It is not a de Polignac number, because 440281 - 2¹¹ = 438233 is a prime.

It is a super-2 number, since 2×440281² = 387694717922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (440221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220140 + 220141.

It is an arithmetic number, because the mean of its divisors is an integer number (220141).

2⁴⁴⁰²⁸¹ is an apocalyptic number.

It is an amenable number.

440281 is a deficient number, since it is larger than the sum of its proper divisors (1).

440281 is an equidigital number, since it uses as much as digits as its factorization.

440281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 440281 is about 663.5367359838. The cubic root of 440281 is about 76.0752371279.

The spelling of 440281 in words is "four hundred forty thousand, two hundred eighty-one".