1139493768 has 64 divisors (see below), whose sum is σ = 3301585920. Its totient is φ = 320980800.

The previous prime is 1139493763. The next prime is 1139493779. The reversal of 1139493768 is 8673949311.

It is a self number, because there is not a number n which added to its sum of digits gives 1139493768.

It is not an unprimeable number, because it can be changed into a prime (1139493763) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35838 + ... + 59693.

It is an arithmetic number, because the mean of its divisors is an integer number (51587280).

Almost surely, 2^1139493768 is an apocalyptic number.

It is an amenable number.

1139493768 is an abundant number, since it is smaller than the sum of its proper divisors (2162092152).

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

1139493768 is a wasteful number, since it uses less digits than its factorization.

1139493768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95618 (or 95614 counting only the distinct ones).

The product of its digits is 979776, while the sum is 51.

The square root of 1139493768 is about 33756.3885509099. The cubic root of 1139493768 is about 1044.4892746346.

The spelling of 1139493768 in words is "one billion, one hundred thirty-nine million, four hundred ninety-three thousand, seven hundred sixty-eight".