4313440021 has 8 divisors (see below), whose sum is σ = 4953232800. Its totient is φ = 3714924240.

The previous prime is 4313440007. The next prime is 4313440069. The reversal of 4313440021 is 1200443134.

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

It is a cyclic number.

It is not a de Polignac number, because 4313440021 - 2¹⁷ = 4313308949 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4313439974 and 4313440001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4313440321) 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, 10319026 + ... + 10319443.

It is an arithmetic number, because the mean of its divisors is an integer number (619154100).

Almost surely, 2^4313440021 is an apocalyptic number.

It is an amenable number.

4313440021 is a deficient number, since it is larger than the sum of its proper divisors (639792779).

4313440021 is a wasteful number, since it uses less digits than its factorization.

4313440021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20638499.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 4313440021 is about 65676.7844904118. The cubic root of 4313440021 is about 1627.8257762846.

Adding to 4313440021 its reverse (1200443134), we get a palindrome (5513883155).

The spelling of 4313440021 in words is "four billion, three hundred thirteen million, four hundred forty thousand, twenty-one".