99032640 has 112 divisors (see below), whose sum is σ = 359371392. Its totient is φ = 22634496.

The previous prime is 99032629. The next prime is 99032669. The reversal of 99032640 is 4623099.

It is a tau number, because it is divible by the number of its divisors (112).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 649 + ... + 14088.

Almost surely, 2^99032640 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 99032640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (179685696).

99032640 is an abundant number, since it is smaller than the sum of its proper divisors (260338752).

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

99032640 is a wasteful number, since it uses less digits than its factorization.

99032640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14764 (or 14754 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 33.

The square root of 99032640 is about 9951.5144576090. The cubic root of 99032640 is about 462.6573353192.

The spelling of 99032640 in words is "ninety-nine million, thirty-two thousand, six hundred forty".