4442662321 has 4 divisors (see below), whose sum is σ = 4443030592. Its totient is φ = 4442294052.

The previous prime is 4442662307. The next prime is 4442662361. The reversal of 4442662321 is 1232662444.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4442662321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4442662361) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165405 + ... + 190378.

It is an arithmetic number, because the mean of its divisors is an integer number (1110757648).

Almost surely, 2^4442662321 is an apocalyptic number.

It is an amenable number.

4442662321 is a deficient number, since it is larger than the sum of its proper divisors (368271).

4442662321 is a wasteful number, since it uses less digits than its factorization.

4442662321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368270.

The product of its digits is 55296, while the sum is 34.

The square root of 4442662321 is about 66653.2994007048. The cubic root of 4442662321 is about 1643.9215987904.

The spelling of 4442662321 in words is "four billion, four hundred forty-two million, six hundred sixty-two thousand, three hundred twenty-one".