4024044021 has 8 divisors (see below), whose sum is σ = 5365770304. Its totient is φ = 2682506880.

The previous prime is 4024043993. The next prime is 4024044049. The reversal of 4024044021 is 1204404204.

It is an interprime number because it is at equal distance from previous prime (4024043993) and next prime (4024044049).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4024044021 - 2¹⁹ = 4023519733 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4024044061) 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, 13536 + ... + 90726.

It is an arithmetic number, because the mean of its divisors is an integer number (670721288).

Almost surely, 2^4024044021 is an apocalyptic number.

It is an amenable number.

4024044021 is a deficient number, since it is larger than the sum of its proper divisors (1341726283).

4024044021 is a wasteful number, since it uses less digits than its factorization.

4024044021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94571.

The product of its (nonzero) digits is 1024, while the sum is 21.

The square root of 4024044021 is about 63435.3530848532. The cubic root of 4024044021 is about 1590.5753255992.

Adding to 4024044021 its reverse (1204404204), we get a palindrome (5228448225).

The spelling of 4024044021 in words is "four billion, twenty-four million, forty-four thousand, twenty-one".