1338438804 has 24 divisors (see below), whose sum is σ = 3123640800. Its totient is φ = 446058144.

The previous prime is 1338438799. The next prime is 1338438841. The reversal of 1338438804 is 4088348331.

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 7 ways as a sum of consecutive naturals, for example, 87522 + ... + 101670.

It is an arithmetic number, because the mean of its divisors is an integer number (130151700).

Almost surely, 2^1338438804 is an apocalyptic number.

It is an amenable number.

1338438804 is an abundant number, since it is smaller than the sum of its proper divisors (1785201996).

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

1338438804 is a wasteful number, since it uses less digits than its factorization.

1338438804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22039 (or 22037 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 42.

The square root of 1338438804 is about 36584.6799083988. The cubic root of 1338438804 is about 1102.0454514232.

The spelling of 1338438804 in words is "one billion, three hundred thirty-eight million, four hundred thirty-eight thousand, eight hundred four".