490873049 has 2 divisors, whose sum is σ = 490873050. Its totient is φ = 490873048.

The previous prime is 490873013. The next prime is 490873069. The reversal of 490873049 is 940378094.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 487747225 + 3125824 = 22085^2 + 1768^2 .

It is a cyclic number.

It is not a de Polignac number, because 490873049 - 2¹² = 490868953 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (490873069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 245436524 + 245436525.

It is an arithmetic number, because the mean of its divisors is an integer number (245436525).

Almost surely, 2^490873049 is an apocalyptic number.

It is an amenable number.

490873049 is a deficient number, since it is larger than the sum of its proper divisors (1).

490873049 is an equidigital number, since it uses as much as digits as its factorization.

490873049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 490873049 is about 22155.6550117572. The cubic root of 490873049 is about 788.8414621146.

The spelling of 490873049 in words is "four hundred ninety million, eight hundred seventy-three thousand, forty-nine".