4021444440324 has 36 divisors (see below), whose sum is σ = 10493231374080. Its totient is φ = 1297240141680.

The previous prime is 4021444440271. The next prime is 4021444440371. The reversal of 4021444440324 is 4230444441204.

It is a happy number.

4021444440324 is a `hidden beast` number, since 40 + 2 + 144 + 4 + 440 + 32 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×4021444440324² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1801721304 + ... + 1801723535.

It is an arithmetic number, because the mean of its divisors is an integer number (291478649280).

Almost surely, 2^{4021444440324} is an apocalyptic number.

It is an amenable number.

4021444440324 is an abundant number, since it is smaller than the sum of its proper divisors (6471786933756).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4021444440324 is a wasteful number, since it uses less digits than its factorization.

4021444440324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3603444880 (or 3603444875 counting only the distinct ones).

The product of its (nonzero) digits is 196608, while the sum is 36.

Adding to 4021444440324 its reverse (4230444441204), we get a palindrome (8251888881528).

The spelling of 4021444440324 in words is "four trillion, twenty-one billion, four hundred forty-four million, four hundred forty thousand, three hundred twenty-four".