9932287640 has 128 divisors (see below), whose sum is σ = 24853478400. Its totient is φ = 3542123520.

The previous prime is 9932287637. The next prime is 9932287649. The reversal of 9932287640 is 467822399.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9932287649) 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, 5665004 + ... + 5666756.

It is an arithmetic number, because the mean of its divisors is an integer number (194167800).

Almost surely, 2^9932287640 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 9932287640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12426739200).

9932287640 is an abundant number, since it is smaller than the sum of its proper divisors (14921190760).

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

9932287640 is a wasteful number, since it uses less digits than its factorization.

9932287640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2017 (or 2013 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 50.

The square root of 9932287640 is about 99660.8631309202. The cubic root of 9932287640 is about 2149.5609444182.

The spelling of 9932287640 in words is "nine billion, nine hundred thirty-two million, two hundred eighty-seven thousand, six hundred forty".