4021444444434 has 16 divisors (see below), whose sum is σ = 8043112963872. Its totient is φ = 1340444135648.

The previous prime is 4021444444373. The next prime is 4021444444439. The reversal of 4021444444434 is 4344444441204.

It is not an unprimeable number, because it can be changed into a prime (4021444444439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9102699 + ... + 9534254.

It is an arithmetic number, because the mean of its divisors is an integer number (502694560242).

Almost surely, 2^{4021444444434} is an apocalyptic number.

4021444444434 is an abundant number, since it is smaller than the sum of its proper divisors (4021668519438).

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

4021444444434 is a wasteful number, since it uses less digits than its factorization.

4021444444434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18672921.

The product of its (nonzero) digits is 1572864, while the sum is 42.

Adding to 4021444444434 its reverse (4344444441204), we get a palindrome (8365888885638).

The spelling of 4021444444434 in words is "four trillion, twenty-one billion, four hundred forty-four million, four hundred forty-four thousand, four hundred thirty-four".