1338122438 has 8 divisors (see below), whose sum is σ = 2020476720. Its totient is φ = 664630200.

The previous prime is 1338122417. The next prime is 1338122441. The reversal of 1338122438 is 8342218331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1338122398 and 1338122407.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2215133 + ... + 2215736.

It is an arithmetic number, because the mean of its divisors is an integer number (252559590).

Almost surely, 2^1338122438 is an apocalyptic number.

1338122438 is a deficient number, since it is larger than the sum of its proper divisors (682354282).

1338122438 is a wasteful number, since it uses less digits than its factorization.

1338122438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4431022.

The product of its digits is 27648, while the sum is 35.

The square root of 1338122438 is about 36580.3559031347. The cubic root of 1338122438 is about 1101.9586146339.

The spelling of 1338122438 in words is "one billion, three hundred thirty-eight million, one hundred twenty-two thousand, four hundred thirty-eight".