9940147272 has 192 divisors, whose sum is σ = 30663360000. Its totient is φ = 2881612800.

The previous prime is 9940147253. The next prime is 9940147279. The reversal of 9940147272 is 2727410499.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (9940147279) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2182854 + ... + 2187402.

It is an arithmetic number, because the mean of its divisors is an integer number (159705000).

Almost surely, 2^9940147272 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 9940147272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15331680000).

9940147272 is an abundant number, since it is smaller than the sum of its proper divisors (20723212728).

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

9940147272 is a wasteful number, since it uses less digits than its factorization.

9940147272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4692 (or 4685 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The square root of 9940147272 is about 99700.2872212513. The cubic root of 9940147272 is about 2150.1277928006.

The spelling of 9940147272 in words is "nine billion, nine hundred forty million, one hundred forty-seven thousand, two hundred seventy-two".