490768361 has 2 divisors, whose sum is σ = 490768362. Its totient is φ = 490768360.

The previous prime is 490768351. The next prime is 490768441. The reversal of 490768361 is 163867094.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 478734400 + 12033961 = 21880^2 + 3469^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-490768361 is a prime.

It is equal to p_25894727 and since 490768361 and 25894727 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (490768351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 245384180 + 245384181.

It is an arithmetic number, because the mean of its divisors is an integer number (245384181).

Almost surely, 2^490768361 is an apocalyptic number.

It is an amenable number.

490768361 is a deficient number, since it is larger than the sum of its proper divisors (1).

490768361 is an equidigital number, since it uses as much as digits as its factorization.

490768361 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 490768361 is about 22153.2923286811. The cubic root of 490768361 is about 788.7853796533.

The spelling of 490768361 in words is "four hundred ninety million, seven hundred sixty-eight thousand, three hundred sixty-one".