444021053 has 16 divisors (see below), whose sum is σ = 533301120. Its totient is φ = 361682496.

The previous prime is 444021037. The next prime is 444021101. The reversal of 444021053 is 350120444.

It is not a de Polignac number, because 444021053 - 2⁴ = 444021037 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 (444021653) 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, 8798 + ... + 31071.

It is an arithmetic number, because the mean of its divisors is an integer number (33331320).

Almost surely, 2^444021053 is an apocalyptic number.

444021053 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

It is an amenable number.

444021053 is a deficient number, since it is larger than the sum of its proper divisors (89280067).

444021053 is a wasteful number, since it uses less digits than its factorization.

444021053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39956.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 444021053 is about 21071.8070653658. The cubic root of 444021053 is about 762.9004202691.

Adding to 444021053 its reverse (350120444), we get a palindrome (794141497).

The spelling of 444021053 in words is "four hundred forty-four million, twenty-one thousand, fifty-three".