11880818 has 12 divisors (see below), whose sum is σ = 18009882. Its totient is φ = 5878080.

The previous prime is 11880809. The next prime is 11880821. The reversal of 11880818 is 81808811.

11880818 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 9406489 + 2474329 = 3067^2 + 1573^2 .

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 49178 + ... + 49418.

Almost surely, 2^11880818 is an apocalyptic number.

11880818 is a deficient number, since it is larger than the sum of its proper divisors (6129064).

11880818 is an equidigital number, since it uses as much as digits as its factorization.

11880818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557 (or 400 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 35.

The square root of 11880818 is about 3446.8562488157. The cubic root of 11880818 is about 228.1823845880.

The spelling of 11880818 in words is "eleven million, eight hundred eighty thousand, eight hundred eighteen".