4440021403021 has 8 divisors (see below), whose sum is σ = 4633217604864. Its totient is φ = 4246837850640.

The previous prime is 4440021402953. The next prime is 4440021403033. The reversal of 4440021403021 is 1203041200444.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4440021403021 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 (4440021403091) 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, 2441586 + ... + 3852451.

It is an arithmetic number, because the mean of its divisors is an integer number (579152200608).

Almost surely, 2^{4440021403021} is an apocalyptic number.

It is an amenable number.

4440021403021 is a deficient number, since it is larger than the sum of its proper divisors (193196201843).

4440021403021 is a wasteful number, since it uses less digits than its factorization.

4440021403021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6324731.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 4440021403021 its reverse (1203041200444), we get a palindrome (5643062603465).

The spelling of 4440021403021 in words is "four trillion, four hundred forty billion, twenty-one million, four hundred three thousand, twenty-one".