1109404 has 12 divisors (see below), whose sum is σ = 1949584. Its totient is φ = 552384.

The previous prime is 1109401. The next prime is 1109411. The reversal of 1109404 is 4049011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1109401) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 937 + ... + 1759.

2^1109404 is an apocalyptic number.

It is an amenable number.

1109404 is a deficient number, since it is larger than the sum of its proper divisors (840180).

1109404 is a wasteful number, since it uses less digits than its factorization.

1109404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1164 (or 1162 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 1109404 is about 1053.2824882243. The cubic root of 1109404 is about 103.5213457650.

The spelling of 1109404 in words is "one million, one hundred nine thousand, four hundred four".