4021004 has 24 divisors (see below), whose sum is σ = 7726320. Its totient is φ = 1819584.

The previous prime is 4021001. The next prime is 4021009. The reversal of 4021004 is 4001204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4021001) 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, 2027 + ... + 3485.

It is an arithmetic number, because the mean of its divisors is an integer number (321930).

Almost surely, 2^4021004 is an apocalyptic number.

It is an amenable number.

4021004 is a deficient number, since it is larger than the sum of its proper divisors (3705316).

4021004 is a wasteful number, since it uses less digits than its factorization.

4021004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1529 (or 1527 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 4021004 is about 2005.2441247888. The cubic root of 4021004 is about 159.0174683813.

Adding to 4021004 its reverse (4001204), we get a palindrome (8022208).

The spelling of 4021004 in words is "four million, twenty-one thousand, four".