1128013730 has 16 divisors (see below), whose sum is σ = 2079948024. Its totient is φ = 440200320.

The previous prime is 1128013723. The next prime is 1128013759. The reversal of 1128013730 is 373108211.

It can be written as a sum of positive squares in 4 ways, for example, as 220136569 + 907877161 = 14837^2 + 30131^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1128013730.

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, 1375217 + ... + 1376036.

Almost surely, 2^1128013730 is an apocalyptic number.

1128013730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1128013730 is a deficient number, since it is larger than the sum of its proper divisors (951934294).

1128013730 is a wasteful number, since it uses less digits than its factorization.

1128013730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2751301.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 1128013730 is about 33585.9156492718. The cubic root of 1128013730 is about 1040.9697962011.

The spelling of 1128013730 in words is "one billion, one hundred twenty-eight million, thirteen thousand, seven hundred thirty".