4021444430194 has 8 divisors (see below), whose sum is σ = 6094353930588. Its totient is φ = 1989993120000.

The previous prime is 4021444430177. The next prime is 4021444430221. The reversal of 4021444430194 is 4910344441204.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3789886178169 + 231558252025 = 1946763^2 + 481205^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10364547307 + ... + 10364547694.

Almost surely, 2^{4021444430194} is an apocalyptic number.

4021444430194 is a deficient number, since it is larger than the sum of its proper divisors (2072909500394).

4021444430194 is a wasteful number, since it uses less digits than its factorization.

4021444430194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20729095100.

The product of its (nonzero) digits is 221184, while the sum is 40.

Adding to 4021444430194 its reverse (4910344441204), we get a palindrome (8931788871398).

The spelling of 4021444430194 in words is "four trillion, twenty-one billion, four hundred forty-four million, four hundred thirty thousand, one hundred ninety-four".