11387488 has 48 divisors (see below), whose sum is σ = 26520480. Its totient is φ = 4709376.

The previous prime is 11387473. The next prime is 11387503. The reversal of 11387488 is 88478311.

It is an interprime number because it is at equal distance from previous prime (11387473) and next prime (11387503).

It is a self number, because there is not a number n which added to its sum of digits gives 11387488.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5620 + ... + 7372.

It is an arithmetic number, because the mean of its divisors is an integer number (552510).

Almost surely, 2^11387488 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 11387488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13260240).

11387488 is an abundant number, since it is smaller than the sum of its proper divisors (15132992).

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

11387488 is a wasteful number, since it uses less digits than its factorization.

11387488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1799 (or 1791 counting only the distinct ones).

The product of its digits is 43008, while the sum is 40.

The square root of 11387488 is about 3374.5352272572. The cubic root of 11387488 is about 224.9793429595.

The spelling of 11387488 in words is "eleven million, three hundred eighty-seven thousand, four hundred eighty-eight".