849666368 has 28 divisors (see below), whose sum is σ = 1759366560. Its totient is φ = 406361472.

The previous prime is 849666361. The next prime is 849666403. The reversal of 849666368 is 863666948.

It is a super-2 number, since 2×849666368² = 1443865873820622848, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (849666361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 287138 + ... + 290081.

It is an arithmetic number, because the mean of its divisors is an integer number (62834520).

Almost surely, 2^849666368 is an apocalyptic number.

It is an amenable number.

849666368 is an abundant number, since it is smaller than the sum of its proper divisors (909700192).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

849666368 is a wasteful number, since it uses less digits than its factorization.

849666368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577254 (or 577244 counting only the distinct ones).

The product of its digits is 8957952, while the sum is 56.

The square root of 849666368 is about 29149.0371710628. The cubic root of 849666368 is about 947.1442841056.

The spelling of 849666368 in words is "eight hundred forty-nine million, six hundred sixty-six thousand, three hundred sixty-eight".