1139348828 has 12 divisors (see below), whose sum is σ = 2058178752. Its totient is φ = 551297760.

The previous prime is 1139348827. The next prime is 1139348831. The reversal of 1139348828 is 8288439311.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1139348827) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4594025 + ... + 4594272.

It is an arithmetic number, because the mean of its divisors is an integer number (171514896).

Almost surely, 2^1139348828 is an apocalyptic number.

It is an amenable number.

1139348828 is a deficient number, since it is larger than the sum of its proper divisors (918829924).

1139348828 is a wasteful number, since it uses less digits than its factorization.

1139348828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9188332 (or 9188330 counting only the distinct ones).

The product of its digits is 331776, while the sum is 47.

The square root of 1139348828 is about 33754.2416297567. The cubic root of 1139348828 is about 1044.4449875138. Note that the first 3 decimals are identical.

The spelling of 1139348828 in words is "one billion, one hundred thirty-nine million, three hundred forty-eight thousand, eight hundred twenty-eight".