490198069 has 2 divisors, whose sum is σ = 490198070. Its totient is φ = 490198068.

The previous prime is 490198061. The next prime is 490198141. The reversal of 490198069 is 960891094.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 344102500 + 146095569 = 18550^2 + 12087^2 .

It is a cyclic number.

It is not a de Polignac number, because 490198069 - 2³ = 490198061 is a prime.

It is a super-2 number, since 2×490198069² = 480588293702657522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (490198061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 245099034 + 245099035.

It is an arithmetic number, because the mean of its divisors is an integer number (245099035).

Almost surely, 2^490198069 is an apocalyptic number.

It is an amenable number.

490198069 is a deficient number, since it is larger than the sum of its proper divisors (1).

490198069 is an equidigital number, since it uses as much as digits as its factorization.

490198069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 139968, while the sum is 46.

The square root of 490198069 is about 22140.4170918255. The cubic root of 490198069 is about 788.4797280919.

The spelling of 490198069 in words is "four hundred ninety million, one hundred ninety-eight thousand, sixty-nine".