44044210021 has 6 divisors (see below), whose sum is σ = 51235101510. Its totient is φ = 37752179976.

The previous prime is 44044210013. The next prime is 44044210031. The reversal of 44044210021 is 12001244044.

44044210021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 38961232996 + 5082977025 = 197386^2 + 71295^2 .

It is not a de Polignac number, because 44044210021 - 2³ = 44044210013 is a prime.

It is a super-4 number, since 4×44044210021⁴ (a number of 44 digits) contains 4444 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 44044209974 and 44044210001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44044210031) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 449430666 + ... + 449430763.

It is an arithmetic number, because the mean of its divisors is an integer number (8539183585).

Almost surely, 2^44044210021 is an apocalyptic number.

It is an amenable number.

44044210021 is a deficient number, since it is larger than the sum of its proper divisors (7190891489).

44044210021 is an equidigital number, since it uses as much as digits as its factorization.

44044210021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 898861443 (or 898861436 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 44044210021 its reverse (12001244044), we get a palindrome (56045454065).

The spelling of 44044210021 in words is "forty-four billion, forty-four million, two hundred ten thousand, twenty-one".