11091400 has 24 divisors (see below), whose sum is σ = 25787970. Its totient is φ = 4436480.

The previous prime is 11091371. The next prime is 11091413. The reversal of 11091400 is 419011.

It is a happy number.

11091400 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 4153444 + 6937956 = 2038^2 + 2634^2 .

It is a zygodrome in base 9.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27529 + ... + 27928.

Almost surely, 2^11091400 is an apocalyptic number.

11091400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11091400 is an abundant number, since it is smaller than the sum of its proper divisors (14696570).

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

11091400 is a wasteful number, since it uses less digits than its factorization.

11091400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55473 (or 55464 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 16.

The square root of 11091400 is about 3330.3753542206. The cubic root of 11091400 is about 223.0122859164.

The spelling of 11091400 in words is "eleven million, ninety-one thousand, four hundred".