13122438 has 32 divisors (see below), whose sum is σ = 30107904. Its totient is φ = 3735072.

The previous prime is 13122437. The next prime is 13122449. The reversal of 13122438 is 83422131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13122437) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 16281 + ... + 17067.

It is an arithmetic number, because the mean of its divisors is an integer number (940872).

Almost surely, 2^13122438 is an apocalyptic number.

13122438 is an abundant number, since it is smaller than the sum of its proper divisors (16985466).

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

13122438 is a wasteful number, since it uses less digits than its factorization.

13122438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1196.

The product of its digits is 1152, while the sum is 24.

The square root of 13122438 is about 3622.4905796979. The cubic root of 13122438 is about 235.8693497860.

Adding to 13122438 its reverse (83422131), we get a palindrome (96544569).

The spelling of 13122438 in words is "thirteen million, one hundred twenty-two thousand, four hundred thirty-eight".