1139831760 has 40 divisors (see below), whose sum is σ = 3533479200. Its totient is φ = 303955072.

The previous prime is 1139831741. The next prime is 1139831761. The reversal of 1139831760 is 671389311.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×1139831760² = 2598432882209395200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1139831761) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2374410 + ... + 2374889.

It is an arithmetic number, because the mean of its divisors is an integer number (88336980).

Almost surely, 2^1139831760 is an apocalyptic number.

1139831760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1139831760 is an abundant number, since it is smaller than the sum of its proper divisors (2393647440).

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

1139831760 is a wasteful number, since it uses less digits than its factorization.

1139831760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4749315 (or 4749309 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 39.

The square root of 1139831760 is about 33761.3945209614. The cubic root of 1139831760 is about 1044.5925351438.

The spelling of 1139831760 in words is "one billion, one hundred thirty-nine million, eight hundred thirty-one thousand, seven hundred sixty".