4444421039 has 2 divisors, whose sum is σ = 4444421040. Its totient is φ = 4444421038.

The previous prime is 4444421029. The next prime is 4444421101. The reversal of 4444421039 is 9301244444.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4444421039 - 2³² = 149453743 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4444421029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2222210519 + 2222210520.

It is an arithmetic number, because the mean of its divisors is an integer number (2222210520).

Almost surely, 2^4444421039 is an apocalyptic number.

4444421039 is a deficient number, since it is larger than the sum of its proper divisors (1).

4444421039 is an equidigital number, since it uses as much as digits as its factorization.

4444421039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 55296, while the sum is 35.

The square root of 4444421039 is about 66666.4911256022. The cubic root of 4444421039 is about 1644.1384967424.

The spelling of 4444421039 in words is "four billion, four hundred forty-four million, four hundred twenty-one thousand, thirty-nine".