3144444021 has 24 divisors (see below), whose sum is σ = 4577898936. Its totient is φ = 2079768960.

The previous prime is 3144444019. The next prime is 3144444029. The reversal of 3144444021 is 1204444413.

It can be written as a sum of positive squares in 4 ways, for example, as 1018311921 + 2126132100 = 31911^2 + 46110^2 .

It is not a de Polignac number, because 3144444021 - 2¹ = 3144444019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3144444029) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 840471 + ... + 844203.

It is an arithmetic number, because the mean of its divisors is an integer number (190745789).

Almost surely, 2^3144444021 is an apocalyptic number.

It is an amenable number.

3144444021 is a deficient number, since it is larger than the sum of its proper divisors (1433454915).

3144444021 is a wasteful number, since it uses less digits than its factorization.

3144444021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4453 (or 4450 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

The square root of 3144444021 is about 56075.3423618617. The cubic root of 3144444021 is about 1465.0348504408.

Adding to 3144444021 its reverse (1204444413), we get a palindrome (4348888434).

The spelling of 3144444021 in words is "three billion, one hundred forty-four million, four hundred forty-four thousand, twenty-one".