985316940 has 192 divisors, whose sum is σ = 3269185920. Its totient is φ = 245514240.

The previous prime is 985316903. The next prime is 985316951. The reversal of 985316940 is 49613589.

It is a happy number.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1661284 + ... + 1661876.

It is an arithmetic number, because the mean of its divisors is an integer number (17027010).

Almost surely, 2^985316940 is an apocalyptic number.

985316940 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 985316940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1634592960).

985316940 is an abundant number, since it is smaller than the sum of its proper divisors (2283868980).

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

985316940 is a wasteful number, since it uses less digits than its factorization.

985316940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 809 (or 801 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The square root of 985316940 is about 31389.7585208934. The cubic root of 985316940 is about 995.0814946340.

The spelling of 985316940 in words is "nine hundred eighty-five million, three hundred sixteen thousand, nine hundred forty".