849022636 has 72 divisors (see below), whose sum is σ = 1976371488. Its totient is φ = 311308800.

The previous prime is 849022627. The next prime is 849022679. The reversal of 849022636 is 636220948.

849022636 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 50226 + ... + 64966.

It is an arithmetic number, because the mean of its divisors is an integer number (27449604).

Almost surely, 2^849022636 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 849022636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (988185744).

849022636 is an abundant number, since it is smaller than the sum of its proper divisors (1127348852).

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

849022636 is a wasteful number, since it uses less digits than its factorization.

849022636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14791 (or 14778 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 40.

The square root of 849022636 is about 29137.9929988323. The cubic root of 849022636 is about 946.9050289699.

The spelling of 849022636 in words is "eight hundred forty-nine million, twenty-two thousand, six hundred thirty-six".