1338193888 has 24 divisors (see below), whose sum is σ = 2635506720. Its totient is φ = 668858880.

The previous prime is 1338193867. The next prime is 1338193891. The reversal of 1338193888 is 8883918331.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114793 + ... + 125911.

It is an arithmetic number, because the mean of its divisors is an integer number (109812780).

Almost surely, 2^1338193888 is an apocalyptic number.

It is an amenable number.

1338193888 is a deficient number, since it is larger than the sum of its proper divisors (1297312832).

1338193888 is a wasteful number, since it uses less digits than its factorization.

1338193888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14890 (or 14882 counting only the distinct ones).

The product of its digits is 995328, while the sum is 52.

The square root of 1338193888 is about 36581.3325071682. The cubic root of 1338193888 is about 1101.9782275730.

The spelling of 1338193888 in words is "one billion, three hundred thirty-eight million, one hundred ninety-three thousand, eight hundred eighty-eight".