1081408 has 28 divisors (see below), whose sum is σ = 2188972. Its totient is φ = 529920.

The previous prime is 1081403. The next prime is 1081417. The reversal of 1081408 is 8041801.

It can be written as a sum of positive squares in 2 ways, for example, as 97344 + 984064 = 312^2 + 992^2 .

It is not an unprimeable number, because it can be changed into a prime (1081403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (3) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3766 + ... + 4042.

2^1081408 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 1081408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1094486).

1081408 is an abundant number, since it is smaller than the sum of its proper divisors (1107564).

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

1081408 is an equidigital number, since it uses as much as digits as its factorization.

1081408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350 (or 340 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 22.

The square root of 1081408 is about 1039.9076882108. The cubic root of 1081408 is about 102.6431234785.

It can be divided in two parts, 10 and 81408, that added together give a palindrome (81418).

The spelling of 1081408 in words is "one million, eighty-one thousand, four hundred eight".