11980140 has 24 divisors (see below), whose sum is σ = 33544560. Its totient is φ = 3194688.

The previous prime is 11980139. The next prime is 11980141. The reversal of 11980140 is 4108911.

It is an interprime number because it is at equal distance from previous prime (11980139) and next prime (11980141).

It is a self number, because there is not a number n which added to its sum of digits gives 11980140.

It is not an unprimeable number, because it can be changed into a prime (11980141) 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, 99775 + ... + 99894.

It is an arithmetic number, because the mean of its divisors is an integer number (1397690).

Almost surely, 2^11980140 is an apocalyptic number.

11980140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11980140 is an abundant number, since it is smaller than the sum of its proper divisors (21564420).

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

11980140 is a wasteful number, since it uses less digits than its factorization.

11980140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199681 (or 199679 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 24.

The square root of 11980140 is about 3461.2338840362. The cubic root of 11980140 is about 228.8164786329.

The spelling of 11980140 in words is "eleven million, nine hundred eighty thousand, one hundred forty".