5444266021 has 4 divisors (see below), whose sum is σ = 5444485452. Its totient is φ = 5444046592.

The previous prime is 5444266007. The next prime is 5444266049. The reversal of 5444266021 is 1206624445.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3491509921 + 1952756100 = 59089^2 + 44190^2 .

It is a cyclic number.

It is not a de Polignac number, because 5444266021 - 2⁵ = 5444265989 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 (5444266621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66940 + ... + 123973.

It is an arithmetic number, because the mean of its divisors is an integer number (1361121363).

Almost surely, 2^5444266021 is an apocalyptic number.

It is an amenable number.

5444266021 is a deficient number, since it is larger than the sum of its proper divisors (219431).

5444266021 is a wasteful number, since it uses less digits than its factorization.

5444266021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219430.

The product of its (nonzero) digits is 46080, while the sum is 34.

The square root of 5444266021 is about 73785.2696749155. The cubic root of 5444266021 is about 1759.1914783439.

The spelling of 5444266021 in words is "five billion, four hundred forty-four million, two hundred sixty-six thousand, twenty-one".