13240032 has 72 divisors (see below), whose sum is σ = 37795464. Its totient is φ = 4034304.

The previous prime is 13240021. The next prime is 13240049. The reversal of 13240032 is 23004231.

It is a super-2 number, since 2×13240032² = 350596894722048, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13239993 and 13240020.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 128493 + ... + 128595.

It is an arithmetic number, because the mean of its divisors is an integer number (524937).

Almost surely, 2^13240032 is an apocalyptic number.

13240032 is a gapful number since it is divisible by the number (12) 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 13240032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18897732).

13240032 is an abundant number, since it is smaller than the sum of its proper divisors (24555432).

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

13240032 is a wasteful number, since it uses less digits than its factorization.

13240032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232 (or 121 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 13240032 is about 3638.6854769271. The cubic root of 13240032 is about 236.5718203119.

Adding to 13240032 its reverse (23004231), we get a palindrome (36244263).

The spelling of 13240032 in words is "thirteen million, two hundred forty thousand, thirty-two".