4444000004021 has 8 divisors (see below), whose sum is σ = 4641874798080. Its totient is φ = 4249100770992.

The previous prime is 4444000003981. The next prime is 4444000004057. The reversal of 4444000004021 is 1204000004444.

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 4444000004021 - 2⁶ = 4444000003957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4444000000021) 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, 743887205 + ... + 743893178.

It is an arithmetic number, because the mean of its divisors is an integer number (580234349760).

Almost surely, 2^{4444000004021} is an apocalyptic number.

It is an amenable number.

4444000004021 is a deficient number, since it is larger than the sum of its proper divisors (197874794059).

4444000004021 is a wasteful number, since it uses less digits than its factorization.

4444000004021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1487780515.

The product of its (nonzero) digits is 2048, while the sum is 23.

Adding to 4444000004021 its reverse (1204000004444), we get a palindrome (5648000008465).

The spelling of 4444000004021 in words is "four trillion, four hundred forty-four billion, four thousand, twenty-one".