1139373808 has 20 divisors (see below), whose sum is σ = 2283659640. Its totient is φ = 550042304.

The previous prime is 1139373773. The next prime is 1139373811. The reversal of 1139373808 is 8083739311.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1227310 + ... + 1228237.

It is an arithmetic number, because the mean of its divisors is an integer number (114182982).

Almost surely, 2^1139373808 is an apocalyptic number.

It is an amenable number.

1139373808 is an abundant number, since it is smaller than the sum of its proper divisors (1144285832).

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

1139373808 is a wasteful number, since it uses less digits than its factorization.

1139373808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2455584 (or 2455578 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 1139373808 is about 33754.6116552983. The cubic root of 1139373808 is about 1044.4526205419.

The spelling of 1139373808 in words is "one billion, one hundred thirty-nine million, three hundred seventy-three thousand, eight hundred eight".