11842720 has 24 divisors (see below), whose sum is σ = 27978804. Its totient is φ = 4737024.

The previous prime is 11842711. The next prime is 11842771. The reversal of 11842720 is 2724811.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11209104 + 633616 = 3348^2 + 796^2 .

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, 36849 + ... + 37168.

Almost surely, 2^11842720 is an apocalyptic number.

11842720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11842720 is an abundant number, since it is smaller than the sum of its proper divisors (16136084).

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

11842720 is an equidigital number, since it uses as much as digits as its factorization.

11842720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74032 (or 74024 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 25.

The square root of 11842720 is about 3441.3253260917. The cubic root of 11842720 is about 227.9382206680.

The spelling of 11842720 in words is "eleven million, eight hundred forty-two thousand, seven hundred twenty".