13402432 has 28 divisors (see below), whose sum is σ = 27039316. Its totient is φ = 6589440.

The previous prime is 13402427. The next prime is 13402453. The reversal of 13402432 is 23420431.

It can be written as a sum of positive squares in 2 ways, for example, as 2005056 + 11397376 = 1416^2 + 3376^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2188 + ... + 5620.

Almost surely, 2^13402432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13402432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13519658).

13402432 is an abundant number, since it is smaller than the sum of its proper divisors (13636884).

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

13402432 is an equidigital number, since it uses as much as digits as its factorization.

13402432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3506 (or 3496 counting only the distinct ones).

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

The square root of 13402432 is about 3660.9332143594. The cubic root of 13402432 is about 237.5351423529.

Adding to 13402432 its reverse (23420431), we get a palindrome (36822863).

The spelling of 13402432 in words is "thirteen million, four hundred two thousand, four hundred thirty-two".