2444430313021 has 16 divisors (see below), whose sum is σ = 2793881030400. Its totient is φ = 2124729257728.

The previous prime is 2444430313009. The next prime is 2444430313051. The reversal of 2444430313021 is 1203130344442.

It is a de Polignac number, because none of the positive numbers 2^k-2444430313021 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 (2444430313001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107777281 + ... + 107799958.

It is an arithmetic number, because the mean of its divisors is an integer number (174617564400).

Almost surely, 2^{2444430313021} is an apocalyptic number.

It is an amenable number.

2444430313021 is a deficient number, since it is larger than the sum of its proper divisors (349450717379).

2444430313021 is a wasteful number, since it uses less digits than its factorization.

2444430313021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215577308.

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 2444430313021 its reverse (1203130344442), we get a palindrome (3647560657463).

The spelling of 2444430313021 in words is "two trillion, four hundred forty-four billion, four hundred thirty million, three hundred thirteen thousand, twenty-one".