490644529 has 2 divisors, whose sum is σ = 490644530. Its totient is φ = 490644528.

The previous prime is 490644523. The next prime is 490644547. The reversal of 490644529 is 925446094.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 489604129 + 1040400 = 22127^2 + 1020^2 .

It is a cyclic number.

It is not a de Polignac number, because 490644529 - 2³ = 490644521 is a prime.

It is not a weakly prime, because it can be changed into another prime (490644521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 245322264 + 245322265.

It is an arithmetic number, because the mean of its divisors is an integer number (245322265).

Almost surely, 2^490644529 is an apocalyptic number.

It is an amenable number.

490644529 is a deficient number, since it is larger than the sum of its proper divisors (1).

490644529 is an equidigital number, since it uses as much as digits as its factorization.

490644529 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 311040, while the sum is 43.

The square root of 490644529 is about 22150.4972630413. The cubic root of 490644529 is about 788.7190312525.

The spelling of 490644529 in words is "four hundred ninety million, six hundred forty-four thousand, five hundred twenty-nine".