1139041660 has 24 divisors (see below), whose sum is σ = 2393596800. Its totient is φ = 455310144.

The previous prime is 1139041601. The next prime is 1139041661. The reversal of 1139041660 is 661409311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1139041661) 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, 12597 + ... + 49363.

It is an arithmetic number, because the mean of its divisors is an integer number (99733200).

Almost surely, 2^1139041660 is an apocalyptic number.

1139041660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1139041660 is an abundant number, since it is smaller than the sum of its proper divisors (1254555140).

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

1139041660 is a wasteful number, since it uses less digits than its factorization.

1139041660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38325 (or 38323 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 1139041660 is about 33749.6912578471. The cubic root of 1139041660 is about 1044.3511184237.

The spelling of 1139041660 in words is "one billion, one hundred thirty-nine million, forty-one thousand, six hundred sixty".