9906990232 has 16 divisors (see below), whose sum is σ = 18926090640. Its totient is φ = 4860032736.

The previous prime is 9906990221. The next prime is 9906990239. The reversal of 9906990232 is 2320996099.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9906990239) 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 3 ways as a sum of consecutive naturals, for example, 11682348 + ... + 11683195.

It is an arithmetic number, because the mean of its divisors is an integer number (1182880665).

Almost surely, 2^9906990232 is an apocalyptic number.

It is an amenable number.

9906990232 is a deficient number, since it is larger than the sum of its proper divisors (9019100408).

9906990232 is a wasteful number, since it uses less digits than its factorization.

9906990232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23365602 (or 23365598 counting only the distinct ones).

The product of its (nonzero) digits is 472392, while the sum is 49.

The square root of 9906990232 is about 99533.8647496419. The cubic root of 9906990232 is about 2147.7344248690.

The spelling of 9906990232 in words is "nine billion, nine hundred six million, nine hundred ninety thousand, two hundred thirty-two".