9999280242 has 48 divisors (see below), whose sum is σ = 24767233920. Its totient is φ = 2856116736.

The previous prime is 9999280241. The next prime is 9999280259. The reversal of 9999280242 is 2420829999.

It is not an unprimeable number, because it can be changed into a prime (9999280241) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 531163 + ... + 549665.

It is an arithmetic number, because the mean of its divisors is an integer number (515984040).

Almost surely, 2^9999280242 is an apocalyptic number.

9999280242 is an abundant number, since it is smaller than the sum of its proper divisors (14767953678).

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

9999280242 is a wasteful number, since it uses less digits than its factorization.

9999280242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22807 (or 22804 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 54.

The square root of 9999280242 is about 99996.4011452412. The cubic root of 9999280242 is about 2154.3829997383.

The spelling of 9999280242 in words is "nine billion, nine hundred ninety-nine million, two hundred eighty thousand, two hundred forty-two".