4021144 has 8 divisors (see below), whose sum is σ = 7539660. Its totient is φ = 2010568.

The previous prime is 4021099. The next prime is 4021151. The reversal of 4021144 is 4411204.

4021144 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 251314 + ... + 251329.

Almost surely, 2^4021144 is an apocalyptic number.

It is an amenable number.

4021144 is a deficient number, since it is larger than the sum of its proper divisors (3518516).

4021144 is a wasteful number, since it uses less digits than its factorization.

4021144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502649 (or 502645 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 4021144 is about 2005.2790329528. The cubic root of 4021144 is about 159.0193138729.

Adding to 4021144 its reverse (4411204), we get a palindrome (8432348).

The spelling of 4021144 in words is "four million, twenty-one thousand, one hundred forty-four".