11985740 has 24 divisors (see below), whose sum is σ = 27106800. Its totient is φ = 4425408.

The previous prime is 11985703. The next prime is 11985761. The reversal of 11985740 is 4758911.

It is a self number, because there is not a number n which added to its sum of digits gives 11985740.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22790 + ... + 23309.

It is an arithmetic number, because the mean of its divisors is an integer number (1129450).

Almost surely, 2^11985740 is an apocalyptic number.

11985740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11985740 is an abundant number, since it is smaller than the sum of its proper divisors (15121060).

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

11985740 is a wasteful number, since it uses less digits than its factorization.

11985740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46121 (or 46119 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 35.

The square root of 11985740 is about 3462.0427495916. The cubic root of 11985740 is about 228.8521257588.

The spelling of 11985740 in words is "eleven million, nine hundred eighty-five thousand, seven hundred forty".