1078912856 has 64 divisors (see below), whose sum is σ = 2368776960. Its totient is φ = 451152000.

The previous prime is 1078912831. The next prime is 1078912867. The reversal of 1078912856 is 6582198701.

It is a self number, because there is not a number n which added to its sum of digits gives 1078912856.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 446291 + ... + 448701.

It is an arithmetic number, because the mean of its divisors is an integer number (37012140).

Almost surely, 2^1078912856 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1078912856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1184388480).

1078912856 is an abundant number, since it is smaller than the sum of its proper divisors (1289864104).

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

1078912856 is a wasteful number, since it uses less digits than its factorization.

1078912856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2616 (or 2612 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 47.

The square root of 1078912856 is about 32846.8089165447. The cubic root of 1078912856 is about 1025.6411950057.

The spelling of 1078912856 in words is "one billion, seventy-eight million, nine hundred twelve thousand, eight hundred fifty-six".