11098890 has 128 divisors (see below), whose sum is σ = 33488640. Its totient is φ = 2592000.

The previous prime is 11098877. The next prime is 11098897. The reversal of 11098890 is 9889011.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11098897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 109840 + ... + 109940.

It is an arithmetic number, because the mean of its divisors is an integer number (261630).

Almost surely, 2^11098890 is an apocalyptic number.

11098890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11098890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16744320).

11098890 is an abundant number, since it is smaller than the sum of its proper divisors (22389750).

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

11098890 is a wasteful number, since it uses less digits than its factorization.

11098890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165 (or 159 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 36.

The square root of 11098890 is about 3331.4996623143. The cubic root of 11098890 is about 223.0624745360.

It can be divided in two parts, 1109 and 8890, that added together give a palindrome (9999).

The spelling of 11098890 in words is "eleven million, ninety-eight thousand, eight hundred ninety".