1012778308 has 48 divisors (see below), whose sum is σ = 1861655040. Its totient is φ = 481536000.

The previous prime is 1012778287. The next prime is 1012778309. The reversal of 1012778308 is 8038772101.

1012778308 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (1012778309) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2416923 + ... + 2417341.

It is an arithmetic number, because the mean of its divisors is an integer number (38784480).

Almost surely, 2^1012778308 is an apocalyptic number.

It is an amenable number.

1012778308 is a deficient number, since it is larger than the sum of its proper divisors (848876732).

1012778308 is a wasteful number, since it uses less digits than its factorization.

1012778308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 748 (or 746 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 37.

The square root of 1012778308 is about 31824.1780412315. The cubic root of 1012778308 is about 1004.2414209147.

The spelling of 1012778308 in words is "one billion, twelve million, seven hundred seventy-eight thousand, three hundred eight".