11388744 has 48 divisors (see below), whose sum is σ = 31000320. Its totient is φ = 3777120.

The previous prime is 11388743. The next prime is 11388791. The reversal of 11388744 is 44788311.

11388744 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

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 = 11388699 and 11388708.

It is not an unprimeable number, because it can be changed into a prime (11388743) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26209 + ... + 26639.

It is an arithmetic number, because the mean of its divisors is an integer number (645840).

Almost surely, 2^11388744 is an apocalyptic number.

It is an amenable number.

11388744 is an abundant number, since it is smaller than the sum of its proper divisors (19611576).

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

11388744 is a wasteful number, since it uses less digits than its factorization.

11388744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 810 (or 803 counting only the distinct ones).

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

The square root of 11388744 is about 3374.7213218279. The cubic root of 11388744 is about 224.9876141330.

The spelling of 11388744 in words is "eleven million, three hundred eighty-eight thousand, seven hundred forty-four".