1103904 has 36 divisors (see below), whose sum is σ = 3140046. Its totient is φ = 367872.

The previous prime is 1103903. The next prime is 1103911. The reversal of 1103904 is 4093011.

It can be written as a sum of positive squares in only one way, i.e., 1040400 + 63504 = 1020^2 + 252^2 .

It is a tau number, because it is divible by the number of its divisors (36).

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

It is not an unprimeable number, because it can be changed into a prime (1103903) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1629 + ... + 2204.

2^1103904 is an apocalyptic number.

It is an amenable number.

1103904 is an abundant number, since it is smaller than the sum of its proper divisors (2036142).

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

1103904 is a wasteful number, since it uses less digits than its factorization.

1103904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3849 (or 3838 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 1103904 is about 1050.6683587127. The cubic root of 1103904 is about 103.3499892217.

Adding to 1103904 its reverse (4093011), we get a palindrome (5196915).

The spelling of 1103904 in words is "one million, one hundred three thousand, nine hundred four".