99091200 has 216 divisors, whose sum is σ = 353064208. Its totient is φ = 24330240.

The previous prime is 99091193. The next prime is 99091229. The reversal of 99091200 is 219099.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 249402 + ... + 249798.

Almost surely, 2^99091200 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 99091200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176532104).

99091200 is an abundant number, since it is smaller than the sum of its proper divisors (253973008).

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

99091200 is a wasteful number, since it uses less digits than its factorization.

99091200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439 (or 420 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 30.

The square root of 99091200 is about 9954.4562885172. The cubic root of 99091200 is about 462.7485102256.

The spelling of 99091200 in words is "ninety-nine million, ninety-one thousand, two hundred".