1081418 has 8 divisors (see below), whose sum is σ = 1746948. Its totient is φ = 499104.

The previous prime is 1081417. The next prime is 1081429. The reversal of 1081418 is 8141801.

It can be written as a sum of positive squares in 2 ways, for example, as 946729 + 134689 = 973^2 + 367^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1081393 and 1081402.

It is not an unprimeable number, because it can be changed into a prime (1081417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20771 + ... + 20822.

2^1081418 is an apocalyptic number.

1081418 is a deficient number, since it is larger than the sum of its proper divisors (665530).

1081418 is a wasteful number, since it uses less digits than its factorization.

1081418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41608.

The product of its (nonzero) digits is 256, while the sum is 23.

The square root of 1081418 is about 1039.9124963188. The cubic root of 1081418 is about 102.6434398648.

The spelling of 1081418 in words is "one million, eighty-one thousand, four hundred eighteen".