11387844 has 48 divisors (see below), whose sum is σ = 31799040. Its totient is φ = 3503520.

The previous prime is 11387837. The next prime is 11387861. The reversal of 11387844 is 44878311.

11387844 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 11387799 and 11387808.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2652 + ... + 5459.

It is an arithmetic number, because the mean of its divisors is an integer number (662480).

Almost surely, 2^11387844 is an apocalyptic number.

It is an amenable number.

11387844 is an abundant number, since it is smaller than the sum of its proper divisors (20411196).

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

11387844 is a wasteful number, since it uses less digits than its factorization.

11387844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8137 (or 8129 counting only the distinct ones).

The product of its digits is 21504, while the sum is 36.

The square root of 11387844 is about 3374.5879748497. The cubic root of 11387844 is about 224.9816873985.

The spelling of 11387844 in words is "eleven million, three hundred eighty-seven thousand, eight hundred forty-four".