444203381 has 2 divisors, whose sum is σ = 444203382. Its totient is φ = 444203380.

The previous prime is 444203377. The next prime is 444203401. The reversal of 444203381 is 183302444.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 313467025 + 130736356 = 17705^2 + 11434^2 .

It is a cyclic number.

It is not a de Polignac number, because 444203381 - 2² = 444203377 is a prime.

It is a super-2 number, since 2×444203381² = 394633287383662322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (444203351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222101690 + 222101691.

It is an arithmetic number, because the mean of its divisors is an integer number (222101691).

Almost surely, 2^444203381 is an apocalyptic number.

It is an amenable number.

444203381 is a deficient number, since it is larger than the sum of its proper divisors (1).

444203381 is an equidigital number, since it uses as much as digits as its factorization.

444203381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9216, while the sum is 29.

The square root of 444203381 is about 21076.1329707326. The cubic root of 444203381 is about 763.0048290368.

The spelling of 444203381 in words is "four hundred forty-four million, two hundred three thousand, three hundred eighty-one".