11675640 has 64 divisors (see below), whose sum is σ = 35316000. Its totient is φ = 3087872.

The previous prime is 11675591. The next prime is 11675641. The reversal of 11675640 is 4657611.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 11675598 and 11675607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11675641) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 17554 + ... + 18206.

Almost surely, 2^11675640 is an apocalyptic number.

11675640 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 11675640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17658000).

11675640 is an abundant number, since it is smaller than the sum of its proper divisors (23640360).

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

11675640 is a wasteful number, since it uses less digits than its factorization.

11675640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 816 (or 812 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 11675640 is about 3416.9635643360. The cubic root of 11675640 is about 226.8612036173.

The spelling of 11675640 in words is "eleven million, six hundred seventy-five thousand, six hundred forty".