13407242 has 4 divisors (see below), whose sum is σ = 20110866. Its totient is φ = 6703620.

The previous prime is 13407241. The next prime is 13407257. The reversal of 13407242 is 24270431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24270431 = 179 ⋅135589.

It can be written as a sum of positive squares in only one way, i.e., 12243001 + 1164241 = 3499^2 + 1079^2 .

It is not an unprimeable number, because it can be changed into a prime (13407241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3351809 + ... + 3351812.

Almost surely, 2^13407242 is an apocalyptic number.

13407242 is a deficient number, since it is larger than the sum of its proper divisors (6703624).

13407242 is an equidigital number, since it uses as much as digits as its factorization.

13407242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6703623.

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 13407242 is about 3661.5900917498. The cubic root of 13407242 is about 237.5635552902.

Adding to 13407242 its reverse (24270431), we get a palindrome (37677673).

The spelling of 13407242 in words is "thirteen million, four hundred seven thousand, two hundred forty-two".