1139880660 has 48 divisors (see below), whose sum is σ = 3259581696. Its totient is φ = 297500032.

The previous prime is 1139880631. The next prime is 1139880697. The reversal of 1139880660 is 660889311.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 199287 + ... + 204926.

It is an arithmetic number, because the mean of its divisors is an integer number (67907952).

Almost surely, 2^1139880660 is an apocalyptic number.

1139880660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1139880660 is an abundant number, since it is smaller than the sum of its proper divisors (2119701036).

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

1139880660 is a wasteful number, since it uses less digits than its factorization.

1139880660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404272 (or 404270 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 42.

The square root of 1139880660 is about 33762.1187131377. The cubic root of 1139880660 is about 1044.6074729753.

The spelling of 1139880660 in words is "one billion, one hundred thirty-nine million, eight hundred eighty thousand, six hundred sixty".