11437920 has 216 divisors, whose sum is σ = 43164576. Its totient is φ = 2755584.

The previous prime is 11437903. The next prime is 11437931. The reversal of 11437920 is 2973411.

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 35 ways as a sum of consecutive naturals, for example, 243337 + ... + 243383.

It is an arithmetic number, because the mean of its divisors is an integer number (199836).

Almost surely, 2^11437920 is an apocalyptic number.

11437920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11437920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21582288).

11437920 is an abundant number, since it is smaller than the sum of its proper divisors (31726656).

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

11437920 is a wasteful number, since it uses less digits than its factorization.

11437920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94 (or 70 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 11437920 is about 3381.9994086339. Note that the first 3 decimals coincide. The cubic root of 11437920 is about 225.3109774008.

The spelling of 11437920 in words is "eleven million, four hundred thirty-seven thousand, nine hundred twenty".