1139493708 has 18 divisors (see below), whose sum is σ = 2880386964. Its totient is φ = 379831224.

The previous prime is 1139493673. The next prime is 1139493713. The reversal of 1139493708 is 8073949311.

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15826266 + ... + 15826337.

It is an arithmetic number, because the mean of its divisors is an integer number (160021498).

Almost surely, 2^1139493708 is an apocalyptic number.

1139493708 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1139493708 is an abundant number, since it is smaller than the sum of its proper divisors (1740893256).

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

1139493708 is a wasteful number, since it uses less digits than its factorization.

1139493708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31652613 (or 31652608 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The square root of 1139493708 is about 33756.3876621892. The cubic root of 1139493708 is about 1044.4892563021.

The spelling of 1139493708 in words is "one billion, one hundred thirty-nine million, four hundred ninety-three thousand, seven hundred eight".