4344322021 has 16 divisors (see below), whose sum is σ = 4704820848. Its totient is φ = 3987648000.

The previous prime is 4344322019. The next prime is 4344322027. The reversal of 4344322021 is 1202234434.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 9548100 + 4334773921 = 3090^2 + 65839^2 .

It is a cyclic number.

It is not a de Polignac number, because 4344322021 - 2¹ = 4344322019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4344322027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2523441 + ... + 2525161.

It is an arithmetic number, because the mean of its divisors is an integer number (294051303).

Almost surely, 2^4344322021 is an apocalyptic number.

It is an amenable number.

4344322021 is a deficient number, since it is larger than the sum of its proper divisors (360498827).

4344322021 is a wasteful number, since it uses less digits than its factorization.

4344322021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2712.

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 4344322021 is about 65911.4710881194. The cubic root of 4344322021 is about 1631.7013388669.

Adding to 4344322021 its reverse (1202234434), we get a palindrome (5546556455).

The spelling of 4344322021 in words is "four billion, three hundred forty-four million, three hundred twenty-two thousand, twenty-one".