1338920313976 has 32 divisors (see below), whose sum is σ = 2869154375040. Its totient is φ = 573815108448.

The previous prime is 1338920313931. The next prime is 1338920313977. The reversal of 1338920313976 is 6793130298331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1338920313977) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5987655 + ... + 6207241.

It is an arithmetic number, because the mean of its divisors is an integer number (89661074220).

Almost surely, 2^{1338920313976} is an apocalyptic number.

It is an amenable number.

1338920313976 is an abundant number, since it is smaller than the sum of its proper divisors (1530234061064).

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

1338920313976 is a wasteful number, since it uses less digits than its factorization.

1338920313976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328483 (or 328479 counting only the distinct ones).

The product of its (nonzero) digits is 4408992, while the sum is 55.

The spelling of 1338920313976 in words is "one trillion, three hundred thirty-eight billion, nine hundred twenty million, three hundred thirteen thousand, nine hundred seventy-six".