1099200 has 84 divisors (see below), whose sum is σ = 3622040. Its totient is φ = 291840.

The previous prime is 1099199. The next prime is 1099223. The reversal of 1099200 is 29901.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4686 + ... + 4914.

2^1099200 is an apocalyptic number.

1099200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1099200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1811020).

1099200 is an abundant number, since it is smaller than the sum of its proper divisors (2522840).

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

1099200 is a wasteful number, since it uses less digits than its factorization.

1099200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254 (or 239 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 21.

The square root of 1099200 is about 1048.4273937665. The cubic root of 1099200 is about 103.2029805040.

The spelling of 1099200 in words is "one million, ninety-nine thousand, two hundred".