11516840 has 16 divisors (see below), whose sum is σ = 25912980. Its totient is φ = 4606720.

The previous prime is 11516807. The next prime is 11516851. The reversal of 11516840 is 4861511.

It can be written as a sum of positive squares in 2 ways, for example, as 10666756 + 850084 = 3266^2 + 922^2 .

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, 143921 + ... + 144000.

Almost surely, 2^11516840 is an apocalyptic number.

11516840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11516840 is an abundant number, since it is smaller than the sum of its proper divisors (14396140).

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

11516840 is a wasteful number, since it uses less digits than its factorization.

11516840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287932 (or 287928 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 26.

The square root of 11516840 is about 3393.6470058036. The cubic root of 11516840 is about 225.8279945301.

The spelling of 11516840 in words is "eleven million, five hundred sixteen thousand, eight hundred forty".