4421994439 has 8 divisors (see below), whose sum is σ = 4492116720. Its totient is φ = 4351993536.

The previous prime is 4421994391. The next prime is 4421994463. The reversal of 4421994439 is 9344991244.

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 4421994439 - 2²⁷ = 4287776711 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4421994392 and 4421994401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4421991439) 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, 44547 + ... + 104059.

It is an arithmetic number, because the mean of its divisors is an integer number (561514590).

Almost surely, 2^4421994439 is an apocalyptic number.

4421994439 is a deficient number, since it is larger than the sum of its proper divisors (70122281).

4421994439 is a wasteful number, since it uses less digits than its factorization.

4421994439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60689.

The product of its digits is 1119744, while the sum is 49.

The square root of 4421994439 is about 66498.0784609601. The cubic root of 4421994439 is about 1641.3683848714.

The spelling of 4421994439 in words is "four billion, four hundred twenty-one million, nine hundred ninety-four thousand, four hundred thirty-nine".