1139078730 has 16 divisors (see below), whose sum is σ = 2733789024. Its totient is φ = 303754320.

The previous prime is 1139078683. The next prime is 1139078779. The reversal of 1139078730 is 378709311.

It is a happy number.

1139078730 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18984616 + ... + 18984675.

It is an arithmetic number, because the mean of its divisors is an integer number (170861814).

Almost surely, 2^1139078730 is an apocalyptic number.

1139078730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1139078730 is an abundant number, since it is smaller than the sum of its proper divisors (1594710294).

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

1139078730 is a wasteful number, since it uses less digits than its factorization.

1139078730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37969301.

The product of its (nonzero) digits is 31752, while the sum is 39.

The square root of 1139078730 is about 33750.2404435880. The cubic root of 1139078730 is about 1044.3624477360.

The spelling of 1139078730 in words is "one billion, one hundred thirty-nine million, seventy-eight thousand, seven hundred thirty".