1278028114 has 16 divisors (see below), whose sum is σ = 2130779520. Its totient is φ = 569960560.

The previous prime is 1278028099. The next prime is 1278028139. The reversal of 1278028114 is 4118208721.

It is a self number, because there is not a number n which added to its sum of digits gives 1278028114.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 546874 + ... + 549205.

It is an arithmetic number, because the mean of its divisors is an integer number (133173720).

Almost surely, 2^1278028114 is an apocalyptic number.

1278028114 is a deficient number, since it is larger than the sum of its proper divisors (852751406).

1278028114 is a wasteful number, since it uses less digits than its factorization.

1278028114 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1096145.

The product of its (nonzero) digits is 7168, while the sum is 34.

The square root of 1278028114 is about 35749.5190736883. The cubic root of 1278028114 is about 1085.2092056968.

The spelling of 1278028114 in words is "one billion, two hundred seventy-eight million, twenty-eight thousand, one hundred fourteen".