985522720 has 192 divisors, whose sum is σ = 2895782400. Its totient is φ = 308625408.

The previous prime is 985522717. The next prime is 985522729. The reversal of 985522720 is 27225589.

985522720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (985522729) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1644981 + ... + 1645579.

It is an arithmetic number, because the mean of its divisors is an integer number (15082200).

Almost surely, 2^985522720 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 985522720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1447891200).

985522720 is an abundant number, since it is smaller than the sum of its proper divisors (1910259680).

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

985522720 is a wasteful number, since it uses less digits than its factorization.

985522720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747 (or 739 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 40.

The square root of 985522720 is about 31393.0361704630. The cubic root of 985522720 is about 995.1507629097.

The spelling of 985522720 in words is "nine hundred eighty-five million, five hundred twenty-two thousand, seven hundred twenty".