985275018 has 192 divisors, whose sum is σ = 2853107712. Its totient is φ = 238325760.

The previous prime is 985274981. The next prime is 985275041. The reversal of 985275018 is 810572589.

It is a happy number.

985275018 is a `hidden beast` number, since 98 + 52 + 7 + 501 + 8 = 666.

985275018 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×985275018² = 1941533722189800648, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1141255 + ... + 1142117.

It is an arithmetic number, because the mean of its divisors is an integer number (14859936).

Almost surely, 2^985275018 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 985275018, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1426553856).

985275018 is an abundant number, since it is smaller than the sum of its proper divisors (1867832694).

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

985275018 is a wasteful number, since it uses less digits than its factorization.

985275018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 949 (or 946 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 45.

The square root of 985275018 is about 31389.0907482202. The cubic root of 985275018 is about 995.0673819506.

The spelling of 985275018 in words is "nine hundred eighty-five million, two hundred seventy-five thousand, eighteen".