1085072856 has 48 divisors (see below), whose sum is σ = 3155572440. Its totient is φ = 310020480.

The previous prime is 1085072851. The next prime is 1085072893. The reversal of 1085072856 is 6582705801.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1085072851) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 460165 + ... + 462516.

Almost surely, 2^1085072856 is an apocalyptic number.

It is an amenable number.

1085072856 is an abundant number, since it is smaller than the sum of its proper divisors (2070499584).

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

1085072856 is a wasteful number, since it uses less digits than its factorization.

1085072856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 922704 (or 922693 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 42.

The square root of 1085072856 is about 32940.4440771523. Note that the first 3 decimals coincide. The cubic root of 1085072856 is about 1027.5894412465.

The spelling of 1085072856 in words is "one billion, eighty-five million, seventy-two thousand, eight hundred fifty-six".