11130440 has 16 divisors (see below), whose sum is σ = 25043580. Its totient is φ = 4452160.

The previous prime is 11130439. The next prime is 11130463. The reversal of 11130440 is 4403111.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11115556 + 14884 = 3334^2 + 122^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 139091 + ... + 139170.

Almost surely, 2^11130440 is an apocalyptic number.

11130440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11130440 is an abundant number, since it is smaller than the sum of its proper divisors (13913140).

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

11130440 is a wasteful number, since it uses less digits than its factorization.

11130440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278272 (or 278268 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 11130440 is about 3336.2314068422. The cubic root of 11130440 is about 223.2736356864.

Adding to 11130440 its reverse (4403111), we get a palindrome (15533551).

The spelling of 11130440 in words is "eleven million, one hundred thirty thousand, four hundred forty".