4022004 has 24 divisors (see below), whose sum is σ = 10725568. Its totient is φ = 1149120.

The previous prime is 4022003. The next prime is 4022017. The reversal of 4022004 is 4002204.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4022003) 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, 23857 + ... + 24024.

Almost surely, 2^4022004 is an apocalyptic number.

It is an amenable number.

4022004 is an abundant number, since it is smaller than the sum of its proper divisors (6703564).

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

4022004 is a wasteful number, since it uses less digits than its factorization.

4022004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47895 (or 47893 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 12.

The square root of 4022004 is about 2005.4934554867. The cubic root of 4022004 is about 159.0306495244.

Adding to 4022004 its reverse (4002204), we get a palindrome (8024208).

It can be divided in two parts, 402200 and 4, that added together give a palindrome (402204).

The spelling of 4022004 in words is "four million, twenty-two thousand, four".