1081040 has 20 divisors (see below), whose sum is σ = 2513604. Its totient is φ = 432384.

The previous prime is 1081037. The next prime is 1081051. The reversal of 1081040 is 401801.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 478864 + 602176 = 692^2 + 776^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6677 + ... + 6836.

2^1081040 is an apocalyptic number.

1081040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1081040 is an abundant number, since it is smaller than the sum of its proper divisors (1432564).

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

1081040 is a wasteful number, since it uses less digits than its factorization.

1081040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13526 (or 13520 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 1081040 is about 1039.7307343731. The cubic root of 1081040 is about 102.6314791053.

Adding to 1081040 its reverse (401801), we get a palindrome (1482841).

The spelling of 1081040 in words is "one million, eighty-one thousand, forty".