485890281 has 12 divisors (see below), whose sum is σ = 708281860. Its totient is φ = 320954400.

The previous prime is 485890267. The next prime is 485890297. The reversal of 485890281 is 182098584.

It is a happy number.

485890281 is a `hidden beast` number, since 48 + 589 + 0 + 28 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 229249881 + 256640400 = 15141^2 + 16020^2 .

It is not a de Polignac number, because 485890281 - 2⁹ = 485889769 is a prime.

It is a super-2 number, since 2×485890281² = 472178730340517922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (485890081) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 246670 + ... + 248631.

Almost surely, 2^485890281 is an apocalyptic number.

It is an amenable number.

485890281 is a deficient number, since it is larger than the sum of its proper divisors (222391579).

485890281 is a wasteful number, since it uses less digits than its factorization.

485890281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495416 (or 495413 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 45.

The square root of 485890281 is about 22042.9190671290. The cubic root of 485890281 is about 786.1632481461.

It can be divided in two parts, 48 and 5890281, that added together give a square (5890329 = 2427²).

The spelling of 485890281 in words is "four hundred eighty-five million, eight hundred ninety thousand, two hundred eighty-one".