1138866596 has 12 divisors (see below), whose sum is σ = 2277733248. Its totient is φ = 488085672.

The previous prime is 1138866473. The next prime is 1138866611. The reversal of 1138866596 is 6956688311.

1138866596 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20336876 + ... + 20336931.

It is an arithmetic number, because the mean of its divisors is an integer number (189811104).

Almost surely, 2^1138866596 is an apocalyptic number.

It is an amenable number.

1138866596 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1138866596 is a wasteful number, since it uses less digits than its factorization.

1138866596 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40673818 (or 40673816 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 53.

The square root of 1138866596 is about 33747.0975937191. The cubic root of 1138866596 is about 1044.2976121421.

The spelling of 1138866596 in words is "one billion, one hundred thirty-eight million, eight hundred sixty-six thousand, five hundred ninety-six".