490000013 has 2 divisors, whose sum is σ = 490000014. Its totient is φ = 490000012.

The previous prime is 490000003. The next prime is 490000019. The reversal of 490000013 is 310000094.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 300744964 + 189255049 = 17342^2 + 13757^2 .

It is a cyclic number.

It is not a de Polignac number, because 490000013 - 2⁴ = 489999997 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 489999946 and 490000000.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (490000019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 245000006 + 245000007.

It is an arithmetic number, because the mean of its divisors is an integer number (245000007).

Almost surely, 2^490000013 is an apocalyptic number.

It is an amenable number.

490000013 is a deficient number, since it is larger than the sum of its proper divisors (1).

490000013 is an equidigital number, since it uses as much as digits as its factorization.

490000013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 490000013 is about 22135.9439148187. The cubic root of 490000013 is about 788.3735232825.

The spelling of 490000013 in words is "four hundred ninety million, thirteen", and thus it is an aban number.