490839469 has 2 divisors, whose sum is σ = 490839470. Its totient is φ = 490839468.

The previous prime is 490839463. The next prime is 490839473. The reversal of 490839469 is 964938094.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 369024100 + 121815369 = 19210^2 + 11037^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-490839469 is a prime.

It is a super-2 number, since 2×490839469² = 481846768656403922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (490839463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 245419734 + 245419735.

It is an arithmetic number, because the mean of its divisors is an integer number (245419735).

Almost surely, 2^490839469 is an apocalyptic number.

It is an amenable number.

490839469 is a deficient number, since it is larger than the sum of its proper divisors (1).

490839469 is an equidigital number, since it uses as much as digits as its factorization.

490839469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1679616, while the sum is 52.

The square root of 490839469 is about 22154.8971787278. The cubic root of 490839469 is about 788.8234738246.

The spelling of 490839469 in words is "four hundred ninety million, eight hundred thirty-nine thousand, four hundred sixty-nine".