1138238804 has 12 divisors (see below), whose sum is σ = 2003047200. Its totient is φ = 565939608.

The previous prime is 1138238779. The next prime is 1138238821. The reversal of 1138238804 is 4088328311.

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, 794144 + ... + 795575.

It is an arithmetic number, because the mean of its divisors is an integer number (166920600).

Almost surely, 2^1138238804 is an apocalyptic number.

It is an amenable number.

1138238804 is a deficient number, since it is larger than the sum of its proper divisors (864808396).

1138238804 is a wasteful number, since it uses less digits than its factorization.

1138238804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1589902 (or 1589900 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 38.

The square root of 1138238804 is about 33737.7948894115. The cubic root of 1138238804 is about 1044.1056896960.

The spelling of 1138238804 in words is "one billion, one hundred thirty-eight million, two hundred thirty-eight thousand, eight hundred four".