9278998120 has 128 divisors (see below), whose sum is σ = 24733900800. Its totient is φ = 3065760000.

The previous prime is 9278998097. The next prime is 9278998129. The reversal of 9278998120 is 218998729.

It is a super-2 number, since 2×9278998120² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (9278998129) 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, 2176551 + ... + 2180809.

It is an arithmetic number, because the mean of its divisors is an integer number (193233600).

Almost surely, 2^9278998120 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 9278998120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12366950400).

9278998120 is an abundant number, since it is smaller than the sum of its proper divisors (15454902680).

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

9278998120 is a wasteful number, since it uses less digits than its factorization.

9278998120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4559 (or 4555 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 55.

The square root of 9278998120 is about 96327.5563896438. The cubic root of 9278998120 is about 2101.3595217839.

The spelling of 9278998120 in words is "nine billion, two hundred seventy-eight million, nine hundred ninety-eight thousand, one hundred twenty".