1139427960 has 192 divisors, whose sum is σ = 3800714400. Its totient is φ = 273039360.

The previous prime is 1139427953. The next prime is 1139427977. The reversal of 1139427960 is 697249311.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1408036 + ... + 1408844.

Almost surely, 2^1139427960 is an apocalyptic number.

1139427960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1139427960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1900357200).

1139427960 is an abundant number, since it is smaller than the sum of its proper divisors (2661286440).

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

1139427960 is a wasteful number, since it uses less digits than its factorization.

1139427960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 942 (or 927 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 1139427960 is about 33755.4137880133. The cubic root of 1139427960 is about 1044.4691671461.

The spelling of 1139427960 in words is "one billion, one hundred thirty-nine million, four hundred twenty-seven thousand, nine hundred sixty".