4001804 has 12 divisors (see below), whose sum is σ = 7019544. Its totient is φ = 1996224.

The previous prime is 4001791. The next prime is 4001807. The reversal of 4001804 is 4081004.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (4001807) 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, 1364 + ... + 3140.

It is an arithmetic number, because the mean of its divisors is an integer number (584962).

Almost surely, 2^4001804 is an apocalyptic number.

It is an amenable number.

4001804 is a deficient number, since it is larger than the sum of its proper divisors (3017740).

4001804 is a wasteful number, since it uses less digits than its factorization.

4001804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2344 (or 2342 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 4001804 is about 2000.4509491612. The cubic root of 4001804 is about 158.7639655393.

Adding to 4001804 its reverse (4081004), we get a palindrome (8082808).

The spelling of 4001804 in words is "four million, one thousand, eight hundred four".