11471388 has 48 divisors (see below), whose sum is σ = 28304640. Its totient is φ = 3608704.

The previous prime is 11471387. The next prime is 11471389. The reversal of 11471388 is 88317411.

It is an interprime number because it is at equal distance from previous prime (11471387) and next prime (11471389).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11471381) 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 15 ways as a sum of consecutive naturals, for example, 24331 + ... + 24797.

It is an arithmetic number, because the mean of its divisors is an integer number (589680).

Almost surely, 2^11471388 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11471388, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14152320).

11471388 is an abundant number, since it is smaller than the sum of its proper divisors (16833252).

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

11471388 is a wasteful number, since it uses less digits than its factorization.

11471388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 586 (or 584 counting only the distinct ones).

The product of its digits is 5376, while the sum is 33.

The square root of 11471388 is about 3386.9437550689. The cubic root of 11471388 is about 225.5305209564.

Adding to 11471388 its reverse (88317411), we get a palindrome (99788799).

The spelling of 11471388 in words is "eleven million, four hundred seventy-one thousand, three hundred eighty-eight".