985851144 has 48 divisors (see below), whose sum is σ = 2671613100. Its totient is φ = 328420224.

The previous prime is 985851133. The next prime is 985851149. The reversal of 985851144 is 441158589.

It is a happy number.

985851144 is a `hidden beast` number, since 98 + 5 + 8 + 511 + 44 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 891022500 + 94828644 = 29850^2 + 9738^2 .

It is a super-2 number, since 2×985851144² = 1943804956252217472, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 985851144.

It is not an unprimeable number, because it can be changed into a prime (985851149) 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 11 ways as a sum of consecutive naturals, for example, 165042 + ... + 170910.

Almost surely, 2^985851144 is an apocalyptic number.

It is an amenable number.

985851144 is an abundant number, since it is smaller than the sum of its proper divisors (1685761956).

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

985851144 is a wasteful number, since it uses less digits than its factorization.

985851144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8214 (or 8207 counting only the distinct ones).

The product of its digits is 230400, while the sum is 45.

The square root of 985851144 is about 31398.2665763574. The cubic root of 985851144 is about 995.2612948095.

The spelling of 985851144 in words is "nine hundred eighty-five million, eight hundred fifty-one thousand, one hundred forty-four".