9942222528 has 336 divisors, whose sum is σ = 34000139264. Its totient is φ = 2821754880.

The previous prime is 9942222509. The next prime is 9942222533. The reversal of 9942222528 is 8252222499.

It is a tau number, because it is divible by the number of its divisors (336).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 29501976 + ... + 29502312.

Almost surely, 2^9942222528 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 9942222528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17000069632).

9942222528 is an abundant number, since it is smaller than the sum of its proper divisors (24057916736).

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

9942222528 is a wasteful number, since it uses less digits than its factorization.

9942222528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642 (or 620 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 9942222528 is about 99710.6941506276. The cubic root of 9942222528 is about 2150.2774134918.

The spelling of 9942222528 in words is "nine billion, nine hundred forty-two million, two hundred twenty-two thousand, five hundred twenty-eight".