1139066780 has 12 divisors (see below), whose sum is σ = 2392040280. Its totient is φ = 455626704.

The previous prime is 1139066779. The next prime is 1139066807. The reversal of 1139066780 is 876609311.

It is a super-3 number, since 3×1139066780³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28476650 + ... + 28476689.

It is an arithmetic number, because the mean of its divisors is an integer number (199336690).

Almost surely, 2^1139066780 is an apocalyptic number.

1139066780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1139066780 is an abundant number, since it is smaller than the sum of its proper divisors (1252973500).

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

1139066780 is a wasteful number, since it uses less digits than its factorization.

1139066780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56953348 (or 56953346 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 1139066780 is about 33750.0634073478. The cubic root of 1139066780 is about 1044.3587956106.

The spelling of 1139066780 in words is "one billion, one hundred thirty-nine million, sixty-six thousand, seven hundred eighty".