849216020 has 48 divisors (see below), whose sum is σ = 1881243840. Its totient is φ = 321117696.

The previous prime is 849216013. The next prime is 849216023. The reversal of 849216020 is 20612948.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (849216023) 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 15 ways as a sum of consecutive naturals, for example, 196604 + ... + 200876.

It is an arithmetic number, because the mean of its divisors is an integer number (39192580).

Almost surely, 2^849216020 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 849216020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (940621920).

849216020 is an abundant number, since it is smaller than the sum of its proper divisors (1032027820).

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

849216020 is a wasteful number, since it uses less digits than its factorization.

849216020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4824 (or 4822 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 849216020 is about 29141.3112265045. The cubic root of 849216020 is about 946.9769164843.

Adding to 849216020 its reverse (20612948), we get a palindrome (869828968).

The spelling of 849216020 in words is "eight hundred forty-nine million, two hundred sixteen thousand, twenty".