1104405 has 32 divisors (see below), whose sum is σ = 1928448. Its totient is φ = 537600.

The previous prime is 1104403. The next prime is 1104409. The reversal of 1104405 is 5044011.

It is not a de Polignac number, because 1104405 - 2¹ = 1104403 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

1104405 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1104403) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15520 + ... + 15590.

It is an arithmetic number, because the mean of its divisors is an integer number (60264).

2^1104405 is an apocalyptic number.

1104405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1104405 is a deficient number, since it is larger than the sum of its proper divisors (824043).

1104405 is a wasteful number, since it uses less digits than its factorization.

1104405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 1104405 is about 1050.9067513343. The cubic root of 1104405 is about 103.3656217748.

Adding to 1104405 its reverse (5044011), we get a palindrome (6148416).

The spelling of 1104405 in words is "one million, one hundred four thousand, four hundred five".