444281 has 2 divisors, whose sum is σ = 444282. Its totient is φ = 444280.

The previous prime is 444271. The next prime is 444287. The reversal of 444281 is 182444.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 434281 + 10000 = 659^2 + 100^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-444281 is a prime.

It is a super-2 number, since 2×444281² = 394771213922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (444287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222140 + 222141.

It is an arithmetic number, because the mean of its divisors is an integer number (222141).

2⁴⁴⁴²⁸¹ is an apocalyptic number.

It is an amenable number.

444281 is a deficient number, since it is larger than the sum of its proper divisors (1).

444281 is an equidigital number, since it uses as much as digits as its factorization.

444281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1024, while the sum is 23.

The square root of 444281 is about 666.5440720613. The cubic root of 444281 is about 76.3049268307.

The spelling of 444281 in words is "four hundred forty-four thousand, two hundred eighty-one".