11885980 has 12 divisors (see below), whose sum is σ = 24960600. Its totient is φ = 4754384.

The previous prime is 11885959. The next prime is 11886013. The reversal of 11885980 is 8958811.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 297130 + ... + 297169.

It is an arithmetic number, because the mean of its divisors is an integer number (2080050).

Almost surely, 2^11885980 is an apocalyptic number.

11885980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11885980 is an abundant number, since it is smaller than the sum of its proper divisors (13074620).

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

11885980 is a wasteful number, since it uses less digits than its factorization.

11885980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 594308 (or 594306 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 40.

The square root of 11885980 is about 3447.6049657697. The cubic root of 11885980 is about 228.2154268393.

The spelling of 11885980 in words is "eleven million, eight hundred eighty-five thousand, nine hundred eighty".