9933462640 has 80 divisors (see below), whose sum is σ = 24273446400. Its totient is φ = 3773189376.

The previous prime is 9933462611. The next prime is 9933462647. The reversal of 9933462640 is 462643399.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9933462647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 236341 + ... + 275179.

It is an arithmetic number, because the mean of its divisors is an integer number (303418080).

Almost surely, 2^9933462640 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 9933462640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12136723200).

9933462640 is an abundant number, since it is smaller than the sum of its proper divisors (14339983760).

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

9933462640 is a wasteful number, since it uses less digits than its factorization.

9933462640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39014 (or 39008 counting only the distinct ones).

The product of its (nonzero) digits is 839808, while the sum is 46.

The square root of 9933462640 is about 99666.7579486761. The cubic root of 9933462640 is about 2149.6457061773.

The spelling of 9933462640 in words is "nine billion, nine hundred thirty-three million, four hundred sixty-two thousand, six hundred forty".