99940800 has 168 divisors, whose sum is σ = 335621376. Its totient is φ = 26024960.

The previous prime is 99940793. The next prime is 99940801. The reversal of 99940800 is 804999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99940801) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 225379 + ... + 225821.

Almost surely, 2^99940800 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 99940800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167810688).

99940800 is an abundant number, since it is smaller than the sum of its proper divisors (235680576).

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

99940800 is a wasteful number, since it uses less digits than its factorization.

99940800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515 (or 500 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 39.

The square root of 99940800 is about 9997.0395617903. The cubic root of 99940800 is about 464.0672712611.

The spelling of 99940800 in words is "ninety-nine million, nine hundred forty thousand, eight hundred".