11031040 has 80 divisors (see below), whose sum is σ = 27498240. Its totient is φ = 4239360.

The previous prime is 11031023. The next prime is 11031047. The reversal of 11031040 is 4013011.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (11031047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79291 + ... + 79429.

It is an arithmetic number, because the mean of its divisors is an integer number (343728).

Almost surely, 2^11031040 is an apocalyptic number.

11031040 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 11031040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13749120).

11031040 is an abundant number, since it is smaller than the sum of its proper divisors (16467200).

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

11031040 is an equidigital number, since it uses as much as digits as its factorization.

11031040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193 (or 177 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 11031040 is about 3321.3009499291. The cubic root of 11031040 is about 222.6070015156.

Adding to 11031040 its reverse (4013011), we get a palindrome (15044051).

The spelling of 11031040 in words is "eleven million, thirty-one thousand, forty".