11942720 has 28 divisors (see below), whose sum is σ = 28439364. Its totient is φ = 4776960.

The previous prime is 11942713. The next prime is 11942743. The reversal of 11942720 is 2724911.

It can be written as a sum of positive squares in 2 ways, for example, as 7311616 + 4631104 = 2704^2 + 2152^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 11942720.

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, 18341 + ... + 18980.

Almost surely, 2^11942720 is an apocalyptic number.

11942720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11942720 is an abundant number, since it is smaller than the sum of its proper divisors (16496644).

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

11942720 is an equidigital number, since it uses as much as digits as its factorization.

11942720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37338 (or 37328 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 11942720 is about 3455.8240695961. The cubic root of 11942720 is about 228.5779938590.

The spelling of 11942720 in words is "eleven million, nine hundred forty-two thousand, seven hundred twenty".