13232440 has 32 divisors (see below), whose sum is σ = 32064480. Its totient is φ = 4885632.

The previous prime is 13232437. The next prime is 13232467. The reversal of 13232440 is 4423231.

13232440 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 7 ways as a sum of consecutive naturals, for example, 12204 + ... + 13243.

It is an arithmetic number, because the mean of its divisors is an integer number (1002015).

Almost surely, 2^13232440 is an apocalyptic number.

13232440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13232440 is an abundant number, since it is smaller than the sum of its proper divisors (18832040).

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

13232440 is a wasteful number, since it uses less digits than its factorization.

13232440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25471 (or 25467 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 13232440 is about 3637.6420934446. The cubic root of 13232440 is about 236.5265939191.

Adding to 13232440 its reverse (4423231), we get a palindrome (17655671).

The spelling of 13232440 in words is "thirteen million, two hundred thirty-two thousand, four hundred forty".