490300609 has 2 divisors, whose sum is σ = 490300610. Its totient is φ = 490300608.

The previous prime is 490300607. The next prime is 490300649. The reversal of 490300609 is 906003094.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 436601025 + 53699584 = 20895^2 + 7328^2 .

It is a cyclic number.

It is not a de Polignac number, because 490300609 - 2¹ = 490300607 is a prime.

Together with 490300607, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (490300607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 245150304 + 245150305.

It is an arithmetic number, because the mean of its divisors is an integer number (245150305).

Almost surely, 2^490300609 is an apocalyptic number.

It is an amenable number.

490300609 is a deficient number, since it is larger than the sum of its proper divisors (1).

490300609 is an equidigital number, since it uses as much as digits as its factorization.

490300609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 490300609 is about 22142.7326452721. The cubic root of 490300609 is about 788.5347025193.

The spelling of 490300609 in words is "four hundred ninety million, three hundred thousand, six hundred nine".