13407442 has 4 divisors (see below), whose sum is σ = 20111166. Its totient is φ = 6703720.

The previous prime is 13407439. The next prime is 13407461. The reversal of 13407442 is 24470431.

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., 12173121 + 1234321 = 3489^2 + 1111^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3351859 + ... + 3351862.

Almost surely, 2^13407442 is an apocalyptic number.

13407442 is a deficient number, since it is larger than the sum of its proper divisors (6703724).

13407442 is an equidigital number, since it uses as much as digits as its factorization.

13407442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6703723.

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 13407442 is about 3661.6174021872. The cubic root of 13407442 is about 237.5647365541.

Adding to 13407442 its reverse (24470431), we get a palindrome (37877873).

The spelling of 13407442 in words is "thirteen million, four hundred seven thousand, four hundred forty-two".