4024321 has 6 divisors (see below), whose sum is σ = 4681410. Its totient is φ = 3449376.

The previous prime is 4024309. The next prime is 4024337. The reversal of 4024321 is 1234204.

It can be written as a sum of positive squares in only one way, i.e., 2436721 + 1587600 = 1561^2 + 1260^2 .

It is not a de Polignac number, because 4024321 - 2⁵ = 4024289 is a prime.

It is a super-2 number, since 2×4024321² = 32390319022082, which contains 22 as substring.

It is a Duffinian number.

4024321 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 4024295 and 4024304.

It is not an unprimeable number, because it can be changed into a prime (4024021) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 41016 + ... + 41113.

It is an arithmetic number, because the mean of its divisors is an integer number (780235).

It is a Proth number, since it is equal to 1965 ⋅ 2¹¹ + 1 and 1965 < 2¹¹.

Almost surely, 2^4024321 is an apocalyptic number.

It is an amenable number.

4024321 is a deficient number, since it is larger than the sum of its proper divisors (657089).

4024321 is an equidigital number, since it uses as much as digits as its factorization.

4024321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82143 (or 82136 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 4024321 is about 2006.0710356316. The cubic root of 4024321 is about 159.0611818395.

Adding to 4024321 its reverse (1234204), we get a palindrome (5258525).

The spelling of 4024321 in words is "four million, twenty-four thousand, three hundred twenty-one".