1103040 has 84 divisors (see below), whose sum is σ = 3803904. Its totient is φ = 293376.

The previous prime is 1103029. The next prime is 1103041. The reversal of 1103040 is 403011.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (1103041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2689 + ... + 3071.

2^1103040 is an apocalyptic number.

1103040 is a gapful number since it is divisible by the number (10) 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 1103040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1901952).

1103040 is an abundant number, since it is smaller than the sum of its proper divisors (2700864).

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

1103040 is a wasteful number, since it uses less digits than its factorization.

1103040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406 (or 393 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 1103040 is about 1050.2571113780. The cubic root of 1103040 is about 103.3230189728.

Adding to 1103040 its reverse (403011), we get a palindrome (1506051).

It can be divided in two parts, 1 and 103040, that added together give a square (103041 = 321²).

The spelling of 1103040 in words is "one million, one hundred three thousand, forty".