11144920 has 16 divisors (see below), whose sum is σ = 25076160. Its totient is φ = 4457952.

The previous prime is 11144899. The next prime is 11144929. The reversal of 11144920 is 2944111.

It is a junction number, because it is equal to n+sod(n) for n = 11144891 and 11144900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11144929) by changing a digit.

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, 139272 + ... + 139351.

It is an arithmetic number, because the mean of its divisors is an integer number (1567260).

Almost surely, 2^11144920 is an apocalyptic number.

11144920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11144920 is an abundant number, since it is smaller than the sum of its proper divisors (13931240).

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

11144920 is a wasteful number, since it uses less digits than its factorization.

11144920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278634 (or 278630 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 11144920 is about 3338.4008147615. The cubic root of 11144920 is about 223.3704153668.

The spelling of 11144920 in words is "eleven million, one hundred forty-four thousand, nine hundred twenty".