1138679474 has 8 divisors (see below), whose sum is σ = 1747740720. Its totient is φ = 556099236.

The previous prime is 1138679471. The next prime is 1138679483. The reversal of 1138679474 is 4749768311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1138679471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6620144 + ... + 6620315.

It is an arithmetic number, because the mean of its divisors is an integer number (218467590).

Almost surely, 2^1138679474 is an apocalyptic number.

1138679474 is a deficient number, since it is larger than the sum of its proper divisors (609061246).

1138679474 is a wasteful number, since it uses less digits than its factorization.

1138679474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13240504.

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

The square root of 1138679474 is about 33744.3250636311. The cubic root of 1138679474 is about 1044.2404144095.

The spelling of 1138679474 in words is "one billion, one hundred thirty-eight million, six hundred seventy-nine thousand, four hundred seventy-four".