490941081 has 10 divisors (see below), whose sum is σ = 733381242. Its totient is φ = 327294000.

The previous prime is 490941071. The next prime is 490941091. The reversal of 490941081 is 180149094.

490941081 is a `hidden beast` number, since 490 + 94 + 1 + 0 + 81 = 666.

It is an interprime number because it is at equal distance from previous prime (490941071) and next prime (490941091).

It can be written as a sum of positive squares in only one way, i.e., 451137600 + 39803481 = 21240^2 + 6309^2 .

It is not a de Polignac number, because 490941081 - 2¹⁰ = 490940057 is a prime.

It is a super-2 number, since 2×490941081² = 482046290026897122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (490941071) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 3030420 + ... + 3030581.

Almost surely, 2^490941081 is an apocalyptic number.

It is an amenable number.

490941081 is a deficient number, since it is larger than the sum of its proper divisors (242440161).

490941081 is an equidigital number, since it uses as much as digits as its factorization.

490941081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6061013 (or 6061004 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 490941081 is about 22157.1902776503. The cubic root of 490941081 is about 788.8779032972.

The spelling of 490941081 in words is "four hundred ninety million, nine hundred forty-one thousand, eighty-one".