11655040 has 32 divisors (see below), whose sum is σ = 27864360. Its totient is φ = 4661760.

The previous prime is 11655023. The next prime is 11655053. The reversal of 11655040 is 4055611.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 8466 + ... + 9745.

Almost surely, 2^11655040 is an apocalyptic number.

11655040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11655040 is an abundant number, since it is smaller than the sum of its proper divisors (16209320).

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

11655040 is an equidigital number, since it uses as much as digits as its factorization.

11655040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18230 (or 18218 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 11655040 is about 3413.9478613476. The cubic root of 11655040 is about 226.7277036701.

The spelling of 11655040 in words is "eleven million, six hundred fifty-five thousand, forty".