4044443023021 has 12 divisors (see below), whose sum is σ = 4331054182140. Its totient is φ = 3774241613120.

The previous prime is 4044443022931. The next prime is 4044443023063. The reversal of 4044443023021 is 1203203444404.

It can be written as a sum of positive squares in 2 ways, for example, as 752141642121 + 3292301380900 = 867261^2 + 1814470^2 .

It is not a de Polignac number, because 4044443023021 - 2¹⁷ = 4044442891949 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 (4044443023321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 93215506 + ... + 93258883.

It is an arithmetic number, because the mean of its divisors is an integer number (360921181845).

Almost surely, 2^{4044443023021} is an apocalyptic number.

4044443023021 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

4044443023021 is a deficient number, since it is larger than the sum of its proper divisors (286611159119).

4044443023021 is a wasteful number, since it uses less digits than its factorization.

4044443023021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186474476 (or 186474453 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 31.

Adding to 4044443023021 its reverse (1203203444404), we get a palindrome (5247646467425).

The spelling of 4044443023021 in words is "four trillion, forty-four billion, four hundred forty-three million, twenty-three thousand, twenty-one".