11821760 has 28 divisors (see below), whose sum is σ = 28151328. Its totient is φ = 4728576.

The previous prime is 11821753. The next prime is 11821787. The reversal of 11821760 is 6712811.

11821760 = T₃₀ + T₃₁ + ... + T₄₁₃.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18152 + ... + 18791.

Almost surely, 2^11821760 is an apocalyptic number.

11821760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11821760 is an abundant number, since it is smaller than the sum of its proper divisors (16329568).

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

11821760 is an equidigital number, since it uses as much as digits as its factorization.

11821760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36960 (or 36950 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 26.

The square root of 11821760 is about 3438.2786390867. The cubic root of 11821760 is about 227.8036680642.

The spelling of 11821760 in words is "eleven million, eight hundred twenty-one thousand, seven hundred sixty".