849459490 has 64 divisors (see below), whose sum is σ = 1698755328. Its totient is φ = 303264000.

The previous prime is 849459487. The next prime is 849459497. The reversal of 849459490 is 94954948.

It is not an unprimeable number, because it can be changed into a prime (849459497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1744027 + ... + 1744513.

It is an arithmetic number, because the mean of its divisors is an integer number (26543052).

Almost surely, 2^849459490 is an apocalyptic number.

849459490 is a deficient number, since it is larger than the sum of its proper divisors (849295838).

849459490 is a wasteful number, since it uses less digits than its factorization.

849459490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 763.

The product of its (nonzero) digits is 1866240, while the sum is 52.

The square root of 849459490 is about 29145.4883301001. The cubic root of 849459490 is about 947.0674071777.

The spelling of 849459490 in words is "eight hundred forty-nine million, four hundred fifty-nine thousand, four hundred ninety".