1082816856 has 256 divisors, whose sum is σ = 3456921600. Its totient is φ = 311040000.

The previous prime is 1082816851. The next prime is 1082816869. The reversal of 1082816856 is 6586182801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1082816851) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4492896 + ... + 4493136.

It is an arithmetic number, because the mean of its divisors is an integer number (13503600).

Almost surely, 2^1082816856 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 1082816856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1728460800).

1082816856 is an abundant number, since it is smaller than the sum of its proper divisors (2374104744).

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

1082816856 is a wasteful number, since it uses less digits than its factorization.

1082816856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359 (or 349 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 45.

The square root of 1082816856 is about 32906.1826409567. The cubic root of 1082816856 is about 1026.8767854829.

The spelling of 1082816856 in words is "one billion, eighty-two million, eight hundred sixteen thousand, eight hundred fifty-six".