9933040988 has 24 divisors (see below), whose sum is σ = 18728931312. Its totient is φ = 4582283904.

The previous prime is 9933040939. The next prime is 9933040991. The reversal of 9933040988 is 8890403399.

It is a super-2 number, since 2×9933040988² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66431 + ... + 155817.

It is an arithmetic number, because the mean of its divisors is an integer number (780372138).

Almost surely, 2^9933040988 is an apocalyptic number.

It is an amenable number.

9933040988 is a deficient number, since it is larger than the sum of its proper divisors (8795890324).

9933040988 is a wasteful number, since it uses less digits than its factorization.

9933040988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91541 (or 91539 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 53.

The square root of 9933040988 is about 99664.6426171288. The cubic root of 9933040988 is about 2149.6152899546.

The spelling of 9933040988 in words is "nine billion, nine hundred thirty-three million, forty thousand, nine hundred eighty-eight".