11040980 has 18 divisors (see below), whose sum is σ = 23217306. Its totient is φ = 4410448.

The previous prime is 11040959. The next prime is 11040983. The reversal of 11040980 is 8904011.

It can be written as a sum of positive squares in only one way, i.e., 8832784 + 2208196 = 2972^2 + 1486^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11040983) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 14489 + ... + 15231.

Almost surely, 2^11040980 is an apocalyptic number.

11040980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11040980 is an abundant number, since it is smaller than the sum of its proper divisors (12176326).

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

11040980 is an frugal number, since it uses more digits than its factorization.

11040980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1495 (or 750 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 11040980 is about 3322.7970145647. The cubic root of 11040980 is about 222.6738446935.

Adding to 11040980 its reverse (8904011), we get a palindrome (19944991).

The spelling of 11040980 in words is "eleven million, forty thousand, nine hundred eighty".