9942658272 has 144 divisors (see below), whose sum is σ = 29241942912. Its totient is φ = 3201223680.

The previous prime is 9942658213. The next prime is 9942658279. The reversal of 9942658272 is 2728562499.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9942658279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8900658 + ... + 8901774.

It is an arithmetic number, because the mean of its divisors is an integer number (203069048).

Almost surely, 2^9942658272 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 9942658272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14620971456).

9942658272 is an abundant number, since it is smaller than the sum of its proper divisors (19299284640).

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

9942658272 is a wasteful number, since it uses less digits than its factorization.

9942658272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2161 (or 2150 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 54.

The square root of 9942658272 is about 99712.8791681396. The cubic root of 9942658272 is about 2150.3088268836.

The spelling of 9942658272 in words is "nine billion, nine hundred forty-two million, six hundred fifty-eight thousand, two hundred seventy-two".