1001104 has 20 divisors (see below), whose sum is σ = 2089276. Its totient is φ = 461952.

The previous prime is 1001093. The next prime is 1001107. The reversal of 1001104 is 4011001.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 435600 + 565504 = 660^2 + 752^2 .

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2199 + ... + 2614.

2^1001104 is an apocalyptic number.

It is an amenable number.

1001104 is an abundant number, since it is smaller than the sum of its proper divisors (1088172).

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

1001104 is a wasteful number, since it uses less digits than its factorization.

1001104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4834 (or 4828 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 7.

The square root of 1001104 is about 1000.5518477320. The cubic root of 1001104 is about 100.0367864659.

Adding to 1001104 its reverse (4011001), we get a palindrome (5012105).

The spelling of 1001104 in words is "one million, one thousand, one hundred four".