985486920 has 192 divisors, whose sum is σ = 3301421760. Its totient is φ = 235107840.

The previous prime is 985486907. The next prime is 985486921. The reversal of 985486920 is 29684589.

It is not an unprimeable number, because it can be changed into a prime (985486921) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 972334 + ... + 973346.

It is an arithmetic number, because the mean of its divisors is an integer number (17194905).

Almost surely, 2^985486920 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 985486920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1650710880).

985486920 is an abundant number, since it is smaller than the sum of its proper divisors (2315934840).

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

985486920 is a wasteful number, since it uses less digits than its factorization.

985486920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1116 (or 1101 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 51.

The square root of 985486920 is about 31392.4659751349. The cubic root of 985486920 is about 995.1387128481.

The spelling of 985486920 in words is "nine hundred eighty-five million, four hundred eighty-six thousand, nine hundred twenty".