11232640 has 32 divisors (see below), whose sum is σ = 26854560. Its totient is φ = 4492800.

The previous prime is 11232623. The next prime is 11232649. The reversal of 11232640 is 4623211.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11232649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8136 + ... + 9415.

It is an arithmetic number, because the mean of its divisors is an integer number (839205).

Almost surely, 2^11232640 is an apocalyptic number.

11232640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11232640 is an abundant number, since it is smaller than the sum of its proper divisors (15621920).

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

11232640 is an equidigital number, since it uses as much as digits as its factorization.

11232640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17570 (or 17558 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 11232640 is about 3351.5130911276. The cubic root of 11232640 is about 223.9549229022.

Adding to 11232640 its reverse (4623211), we get a palindrome (15855851).

The spelling of 11232640 in words is "eleven million, two hundred thirty-two thousand, six hundred forty".