1100004 has 24 divisors (see below), whose sum is σ = 2650368. Its totient is φ = 354720.

The previous prime is 1099997. The next prime is 1100009. The reversal of 1100004 is 4000011.

It is a Harshad number since it is a multiple of its sum of digits (6).

It is a junction number, because it is equal to n+sod(n) for n = 1099965 and 1100001.

It is not an unprimeable number, because it can be changed into a prime (1100009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1107 + ... + 1850.

It is an arithmetic number, because the mean of its divisors is an integer number (110432).

2^1100004 is an apocalyptic number.

It is an amenable number.

1100004 is an abundant number, since it is smaller than the sum of its proper divisors (1550364).

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

1100004 is a wasteful number, since it uses less digits than its factorization.

1100004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2995 (or 2993 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 6.

The square root of 1100004 is about 1048.8107550936. The cubic root of 1100004 is about 103.2281366703.

Adding to 1100004 its reverse (4000011), we get a palindrome (5100015).

The spelling of 1100004 in words is "one million, one hundred thousand, four".