11100444 has 48 divisors (see below), whose sum is σ = 27783168. Its totient is φ = 3440448.

The previous prime is 11100433. The next prime is 11100457. The reversal of 11100444 is 44400111.

It is a zygodrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9669 + ... + 10755.

It is an arithmetic number, because the mean of its divisors is an integer number (578816).

Almost surely, 2^11100444 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 11100444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13891584).

11100444 is an abundant number, since it is smaller than the sum of its proper divisors (16682724).

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

11100444 is a wasteful number, since it uses less digits than its factorization.

11100444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1154 (or 1152 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 11100444 is about 3331.7328824502. The cubic root of 11100444 is about 223.0728846734.

Adding to 11100444 its reverse (44400111), we get a palindrome (55500555).

It can be divided in two parts, 11100 and 444, that multiplied together give a square (4928400 = 2220²).

The spelling of 11100444 in words is "eleven million, one hundred thousand, four hundred forty-four".