490042859 has 2 divisors, whose sum is σ = 490042860. Its totient is φ = 490042858.

The previous prime is 490042801. The next prime is 490042877. The reversal of 490042859 is 958240094.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 490042859 - 2⁸ = 490042603 is a prime.

It is equal to p_25858535 and since 490042859 and 25858535 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 (490042759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 245021429 + 245021430.

It is an arithmetic number, because the mean of its divisors is an integer number (245021430).

Almost surely, 2^490042859 is an apocalyptic number.

490042859 is a deficient number, since it is larger than the sum of its proper divisors (1).

490042859 is an equidigital number, since it uses as much as digits as its factorization.

490042859 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 490042859 is about 22136.9116861409. The cubic root of 490042859 is about 788.3965012870.

The spelling of 490042859 in words is "four hundred ninety million, forty-two thousand, eight hundred fifty-nine".