13442306 has 4 divisors (see below), whose sum is σ = 20163462. Its totient is φ = 6721152.

The previous prime is 13442287. The next prime is 13442309. The reversal of 13442306 is 60324431.

It is a happy number.

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., 7513081 + 5929225 = 2741^2 + 2435^2 .

It is not an unprimeable number, because it can be changed into a prime (13442309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3360575 + ... + 3360578.

Almost surely, 2^13442306 is an apocalyptic number.

13442306 is a deficient number, since it is larger than the sum of its proper divisors (6721156).

13442306 is an equidigital number, since it uses as much as digits as its factorization.

13442306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6721155.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 13442306 is about 3666.3750490096. The cubic root of 13442306 is about 237.7704752337.

Adding to 13442306 its reverse (60324431), we get a palindrome (73766737).

The spelling of 13442306 in words is "thirteen million, four hundred forty-two thousand, three hundred six".