490890341 has 4 divisors (see below), whose sum is σ = 490942284. Its totient is φ = 490838400.

The previous prime is 490890277. The next prime is 490890343. The reversal of 490890341 is 143098094.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 143098094 = 2 ⋅71549047.

It can be written as a sum of positive squares in 2 ways, for example, as 217120225 + 273770116 = 14735^2 + 16546^2 .

It is a cyclic number.

It is not a de Polignac number, because 490890341 - 2⁶ = 490890277 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 490890295 and 490890304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (490890343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7340 + ... + 32181.

It is an arithmetic number, because the mean of its divisors is an integer number (122735571).

Almost surely, 2^490890341 is an apocalyptic number.

It is an amenable number.

490890341 is a deficient number, since it is larger than the sum of its proper divisors (51943).

490890341 is a wasteful number, since it uses less digits than its factorization.

490890341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51942.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 490890341 is about 22156.0452472909. The cubic root of 490890341 is about 788.8507248534.

The spelling of 490890341 in words is "four hundred ninety million, eight hundred ninety thousand, three hundred forty-one".