1081044 has 18 divisors (see below), whose sum is σ = 2732730. Its totient is φ = 360336.

The previous prime is 1081037. The next prime is 1081051. The reversal of 1081044 is 4401801.

It is an interprime number because it is at equal distance from previous prime (1081037) and next prime (1081051).

It can be written as a sum of positive squares in only one way, i.e., 1077444 + 3600 = 1038^2 + 60^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×1081044² = 2337312259872, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 14979 + ... + 15050.

2^1081044 is an apocalyptic number.

It is an amenable number.

1081044 is an abundant number, since it is smaller than the sum of its proper divisors (1651686).

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

1081044 is a wasteful number, since it uses less digits than its factorization.

1081044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30039 (or 30034 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 1081044 is about 1039.7326579463. The cubic root of 1081044 is about 102.6316056888.

Adding to 1081044 its reverse (4401801), we get a palindrome (5482845).

The spelling of 1081044 in words is "one million, eighty-one thousand, forty-four".