11745680 has 40 divisors (see below), whose sum is σ = 27982584. Its totient is φ = 4582400.

The previous prime is 11745677. The next prime is 11745689. The reversal of 11745680 is 8654711.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 802816 + 10942864 = 896^2 + 3308^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (11745689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1490 + ... + 5070.

Almost surely, 2^11745680 is an apocalyptic number.

11745680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11745680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13991292).

11745680 is an abundant number, since it is smaller than the sum of its proper divisors (16236904).

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

11745680 is a wasteful number, since it uses less digits than its factorization.

11745680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3635 (or 3629 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 11745680 is about 3427.1971055076. The cubic root of 11745680 is about 227.3139323108.

The spelling of 11745680 in words is "eleven million, seven hundred forty-five thousand, six hundred eighty".