490350569 has 4 divisors (see below), whose sum is σ = 490414980. Its totient is φ = 490286160.

The previous prime is 490350493. The next prime is 490350571. The reversal of 490350569 is 965053094.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 117397225 + 372953344 = 10835^2 + 19312^2 .

It is a cyclic number.

It is not a de Polignac number, because 490350569 - 2⁸ = 490350313 is a prime.

It is a super-2 number, since 2×490350569² = 480887361037247522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (490350599) 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 in 3 ways as a sum of consecutive naturals, for example, 18974 + ... + 36615.

It is an arithmetic number, because the mean of its divisors is an integer number (122603745).

Almost surely, 2^490350569 is an apocalyptic number.

It is an amenable number.

490350569 is a deficient number, since it is larger than the sum of its proper divisors (64411).

490350569 is an equidigital number, since it uses as much as digits as its factorization.

490350569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64410.

The product of its (nonzero) digits is 145800, while the sum is 41.

The square root of 490350569 is about 22143.8607519104. The cubic root of 490350569 is about 788.5614846301.

The spelling of 490350569 in words is "four hundred ninety million, three hundred fifty thousand, five hundred sixty-nine".