11155040 has 96 divisors (see below), whose sum is σ = 29465856. Its totient is φ = 3962880.

The previous prime is 11154991. The next prime is 11155049. The reversal of 11155040 is 4055111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11155049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64394 + ... + 64566.

It is an arithmetic number, because the mean of its divisors is an integer number (306936).

Almost surely, 2^11155040 is an apocalyptic number.

11155040 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 11155040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14732928).

11155040 is an abundant number, since it is smaller than the sum of its proper divisors (18310816).

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

11155040 is a wasteful number, since it uses less digits than its factorization.

11155040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232 (or 224 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 17.

The square root of 11155040 is about 3339.9161666126. The cubic root of 11155040 is about 223.4380044490.

The spelling of 11155040 in words is "eleven million, one hundred fifty-five thousand, forty".