11281432 has 8 divisors (see below), whose sum is σ = 21152700. Its totient is φ = 5640712.

The previous prime is 11281409. The next prime is 11281433. The reversal of 11281432 is 23418211.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11281433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 705082 + ... + 705097.

Almost surely, 2^11281432 is an apocalyptic number.

It is an amenable number.

11281432 is a deficient number, since it is larger than the sum of its proper divisors (9871268).

11281432 is a wasteful number, since it uses less digits than its factorization.

11281432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1410185 (or 1410181 counting only the distinct ones).

The product of its digits is 384, while the sum is 22.

The square root of 11281432 is about 3358.7843038814. The cubic root of 11281432 is about 224.2787240422.

Adding to 11281432 its reverse (23418211), we get a palindrome (34699643).

The spelling of 11281432 in words is "eleven million, two hundred eighty-one thousand, four hundred thirty-two".