1080816 has 80 divisors (see below), whose sum is σ = 3214080. Its totient is φ = 309760.

The previous prime is 1080811. The next prime is 1080817. The reversal of 1080816 is 6180801.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1080811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12100 + ... + 12188.

It is an arithmetic number, because the mean of its divisors is an integer number (40176).

2^1080816 is an apocalyptic number.

1080816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1080816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1607040).

1080816 is an abundant number, since it is smaller than the sum of its proper divisors (2133264).

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

1080816 is a wasteful number, since it uses less digits than its factorization.

1080816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134 (or 128 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 24.

The square root of 1080816 is about 1039.6230085949. The cubic root of 1080816 is about 102.6243899321.

The spelling of 1080816 in words is "one million, eighty thousand, eight hundred sixteen".