11281488 has 40 divisors (see below), whose sum is σ = 29456448. Its totient is φ = 3720192.

The previous prime is 11281483. The next prime is 11281507. The reversal of 11281488 is 88418211.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11281481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3445 + ... + 5867.

Almost surely, 2^11281488 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 11281488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14728224).

11281488 is an abundant number, since it is smaller than the sum of its proper divisors (18174960).

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

11281488 is a wasteful number, since it uses less digits than its factorization.

11281488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2531 (or 2525 counting only the distinct ones).

The product of its digits is 4096, while the sum is 33.

The square root of 11281488 is about 3358.7926402206. The cubic root of 11281488 is about 224.2790951413.

Adding to 11281488 its reverse (88418211), we get a palindrome (99699699).

The spelling of 11281488 in words is "eleven million, two hundred eighty-one thousand, four hundred eighty-eight".