11307880 has 16 divisors (see below), whose sum is σ = 25442820. Its totient is φ = 4523136.

The previous prime is 11307851. The next prime is 11307887. The reversal of 11307880 is 8870311.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11249316 + 58564 = 3354^2 + 242^2 .

It is not an unprimeable number, because it can be changed into a prime (11307887) 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 3 ways as a sum of consecutive naturals, for example, 141309 + ... + 141388.

Almost surely, 2^11307880 is an apocalyptic number.

11307880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11307880 is an abundant number, since it is smaller than the sum of its proper divisors (14134940).

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

11307880 is a wasteful number, since it uses less digits than its factorization.

11307880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282708 (or 282704 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 28.

The square root of 11307880 is about 3362.7191378407. The cubic root of 11307880 is about 224.4538523507.

The spelling of 11307880 in words is "eleven million, three hundred seven thousand, eight hundred eighty".