11880280 has 32 divisors (see below), whose sum is σ = 28304640. Its totient is φ = 4472320.

The previous prime is 11880251. The next prime is 11880287. The reversal of 11880280 is 8208811.

11880280 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×11880280² = 282282105756800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11880287) 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, 8056 + ... + 9415.

It is an arithmetic number, because the mean of its divisors is an integer number (884520).

Almost surely, 2^11880280 is an apocalyptic number.

11880280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11880280 is an abundant number, since it is smaller than the sum of its proper divisors (16424360).

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

11880280 is a wasteful number, since it uses less digits than its factorization.

11880280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17499 (or 17495 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 28.

The square root of 11880280 is about 3446.7782058032. The cubic root of 11880280 is about 228.1789402691.

The spelling of 11880280 in words is "eleven million, eight hundred eighty thousand, two hundred eighty".