985305220 has 48 divisors (see below), whose sum is σ = 2096575488. Its totient is φ = 388926720.

The previous prime is 985305179. The next prime is 985305229. The reversal of 985305220 is 22503589.

It is not an unprimeable number, because it can be changed into a prime (985305229) 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 15 ways as a sum of consecutive naturals, for example, 669085 + ... + 670555.

It is an arithmetic number, because the mean of its divisors is an integer number (43678656).

Almost surely, 2^985305220 is an apocalyptic number.

It is an amenable number.

985305220 is an abundant number, since it is smaller than the sum of its proper divisors (1111270268).

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

985305220 is a wasteful number, since it uses less digits than its factorization.

985305220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1900 (or 1898 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 985305220 is about 31389.5718352449. The cubic root of 985305220 is about 995.0775492363.

The spelling of 985305220 in words is "nine hundred eighty-five million, three hundred five thousand, two hundred twenty".