13425442 has 4 divisors (see below), whose sum is σ = 20138166. Its totient is φ = 6712720.

The previous prime is 13425437. The next prime is 13425443. The reversal of 13425442 is 24452431.

It is a happy number.

13425442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 9308601 + 4116841 = 3051^2 + 2029^2 .

It is not an unprimeable number, because it can be changed into a prime (13425443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3356359 + ... + 3356362.

Almost surely, 2^13425442 is an apocalyptic number.

13425442 is a deficient number, since it is larger than the sum of its proper divisors (6712724).

13425442 is an equidigital number, since it uses as much as digits as its factorization.

13425442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6712723.

The product of its digits is 3840, while the sum is 25.

The square root of 13425442 is about 3664.0745079761. The cubic root of 13425442 is about 237.6710022397.

Adding to 13425442 its reverse (24452431), we get a palindrome (37877873).

The spelling of 13425442 in words is "thirteen million, four hundred twenty-five thousand, four hundred forty-two".