444330033421 has 2 divisors, whose sum is σ = 444330033422. Its totient is φ = 444330033420.

The previous prime is 444330033401. The next prime is 444330033457. The reversal of 444330033421 is 124330033444.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 316980260100 + 127349773321 = 563010^2 + 356861^2 .

It is a cyclic number.

It is not a de Polignac number, because 444330033421 - 2³⁷ = 306891079949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (444330033401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222165016710 + 222165016711.

It is an arithmetic number, because the mean of its divisors is an integer number (222165016711).

Almost surely, 2^444330033421 is an apocalyptic number.

It is an amenable number.

444330033421 is a deficient number, since it is larger than the sum of its proper divisors (1).

444330033421 is an equidigital number, since it uses as much as digits as its factorization.

444330033421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 31.

Adding to 444330033421 its reverse (124330033444), we get a palindrome (568660066865).

The spelling of 444330033421 in words is "four hundred forty-four billion, three hundred thirty million, thirty-three thousand, four hundred twenty-one".