1138974764 has 12 divisors (see below), whose sum is σ = 1994045424. Its totient is φ = 569247504.

The previous prime is 1138974731. The next prime is 1138974773. The reversal of 1138974764 is 4674798311.

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, 49067 + ... + 68450.

It is an arithmetic number, because the mean of its divisors is an integer number (166170452).

Almost surely, 2^1138974764 is an apocalyptic number.

It is an amenable number.

1138974764 is a deficient number, since it is larger than the sum of its proper divisors (855070660).

1138974764 is a wasteful number, since it uses less digits than its factorization.

1138974764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119944 (or 119942 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 50.

The square root of 1138974764 is about 33748.7001823774. The cubic root of 1138974764 is about 1044.3306730843.

The spelling of 1138974764 in words is "one billion, one hundred thirty-eight million, nine hundred seventy-four thousand, seven hundred sixty-four".