490276881 has 40 divisors (see below), whose sum is σ = 756898560. Its totient is φ = 316084032.

The previous prime is 490276879. The next prime is 490276903. The reversal of 490276881 is 188672094.

490276881 is a `hidden beast` number, since 490 + 27 + 68 + 81 = 666.

It is not a de Polignac number, because 490276881 - 2¹ = 490276879 is a prime.

It is a super-2 number, since 2×490276881² = 480742840086176322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (490256881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 338100 + ... + 339546.

It is an arithmetic number, because the mean of its divisors is an integer number (18922464).

Almost surely, 2^490276881 is an apocalyptic number.

It is an amenable number.

490276881 is a deficient number, since it is larger than the sum of its proper divisors (266621679).

490276881 is a wasteful number, since it uses less digits than its factorization.

490276881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1595 (or 1586 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The square root of 490276881 is about 22142.1968422286. The cubic root of 490276881 is about 788.5219819877.

The spelling of 490276881 in words is "four hundred ninety million, two hundred seventy-six thousand, eight hundred eighty-one".