11432280 has 64 divisors (see below), whose sum is σ = 35043840. Its totient is φ = 2982272.

The previous prime is 11432261. The next prime is 11432341. The reversal of 11432280 is 8223411.

11432280 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4627 + ... + 6653.

It is an arithmetic number, because the mean of its divisors is an integer number (547560).

Almost surely, 2^11432280 is an apocalyptic number.

11432280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11432280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17521920).

11432280 is an abundant number, since it is smaller than the sum of its proper divisors (23611560).

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

11432280 is a wasteful number, since it uses less digits than its factorization.

11432280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2088 (or 2084 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 11432280 is about 3381.1654795351. The cubic root of 11432280 is about 225.2739379496.

Adding to 11432280 its reverse (8223411), we get a palindrome (19655691).

The spelling of 11432280 in words is "eleven million, four hundred thirty-two thousand, two hundred eighty".