485644281 has 16 divisors (see below), whose sum is σ = 664355520. Its totient is φ = 315445760.

The previous prime is 485644223. The next prime is 485644307. The reversal of 485644281 is 182446584.

It is a cyclic number.

It is not a de Polignac number, because 485644281 - 2⁷ = 485644153 is a prime.

It is a super-2 number, since 2×485644281² = 471700735336013922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (485644381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7861 + ... + 32141.

It is an arithmetic number, because the mean of its divisors is an integer number (41522220).

Almost surely, 2^485644281 is an apocalyptic number.

It is an amenable number.

485644281 is a deficient number, since it is larger than the sum of its proper divisors (178711239).

485644281 is a wasteful number, since it uses less digits than its factorization.

485644281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24456.

The product of its digits is 245760, while the sum is 42.

The square root of 485644281 is about 22037.3383374672. The cubic root of 485644281 is about 786.0305509689.

The spelling of 485644281 in words is "four hundred eighty-five million, six hundred forty-four thousand, two hundred eighty-one".