985049520 has 640 divisors, whose sum is σ = 4103737344. Its totient is φ = 189775872.

The previous prime is 985049519. The next prime is 985049531. The reversal of 985049520 is 25940589.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 18585814 + ... + 18585866.

Almost surely, 2^985049520 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 985049520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2051868672).

985049520 is an abundant number, since it is smaller than the sum of its proper divisors (3118687824).

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

985049520 is a wasteful number, since it uses less digits than its factorization.

985049520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149 (or 143 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 42.

The square root of 985049520 is about 31385.4985622341. The cubic root of 985049520 is about 994.9914631053.

The spelling of 985049520 in words is "nine hundred eighty-five million, forty-nine thousand, five hundred twenty".