984990280 has 64 divisors (see below), whose sum is σ = 2336532480. Its totient is φ = 373152000.

The previous prime is 984990263. The next prime is 984990289. The reversal of 984990280 is 82099489.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (984990289) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49830 + ... + 66730.

It is an arithmetic number, because the mean of its divisors is an integer number (36508320).

Almost surely, 2^984990280 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 984990280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1168266240).

984990280 is an abundant number, since it is smaller than the sum of its proper divisors (1351542200).

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

984990280 is a wasteful number, since it uses less digits than its factorization.

984990280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16990 (or 16986 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 49.

The square root of 984990280 is about 31384.5548000924. The cubic root of 984990280 is about 994.9715167389.

The spelling of 984990280 in words is "nine hundred eighty-four million, nine hundred ninety thousand, two hundred eighty".