11940880 has 40 divisors (see below), whose sum is σ = 31730112. Its totient is φ = 4093824.

The previous prime is 11940871. The next prime is 11940883. The reversal of 11940880 is 8804911.

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

It is a Smith number, since the sum of its digits (31) 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 (11940883) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10102 + ... + 11221.

Almost surely, 2^11940880 is an apocalyptic number.

11940880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11940880 is an abundant number, since it is smaller than the sum of its proper divisors (19789232).

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

11940880 is a wasteful number, since it uses less digits than its factorization.

11940880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21343 (or 21337 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 31.

The square root of 11940880 is about 3455.5578420857. The cubic root of 11940880 is about 228.5662543472.

The spelling of 11940880 in words is "eleven million, nine hundred forty thousand, eight hundred eighty".