11909760 has 64 divisors (see below), whose sum is σ = 37968480. Its totient is φ = 3175424.

The previous prime is 11909759. The next prime is 11909767. The reversal of 11909760 is 6790911.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (11909767) 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, 1182 + ... + 5021.

Almost surely, 2^11909760 is an apocalyptic number.

11909760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11909760 is an abundant number, since it is smaller than the sum of its proper divisors (26058720).

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

11909760 is an equidigital number, since it uses as much as digits as its factorization.

11909760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6225 (or 6213 counting only the distinct ones).

The product of its (nonzero) digits is 3402, while the sum is 33.

The square root of 11909760 is about 3451.0520135170. The cubic root of 11909760 is about 228.3675205292.

The spelling of 11909760 in words is "eleven million, nine hundred nine thousand, seven hundred sixty".