444250421 has 2 divisors, whose sum is σ = 444250422. Its totient is φ = 444250420.

The previous prime is 444250363. The next prime is 444250427. The reversal of 444250421 is 124052444.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 285238321 + 159012100 = 16889^2 + 12610^2 .

It is a cyclic number.

It is not a de Polignac number, because 444250421 - 2⁶ = 444250357 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (444250427) by changing a digit.

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 as a sum of consecutive naturals, namely, 222125210 + 222125211.

It is an arithmetic number, because the mean of its divisors is an integer number (222125211).

Almost surely, 2^444250421 is an apocalyptic number.

It is an amenable number.

444250421 is a deficient number, since it is larger than the sum of its proper divisors (1).

444250421 is an equidigital number, since it uses as much as digits as its factorization.

444250421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5120, while the sum is 26.

The square root of 444250421 is about 21077.2488954322. The cubic root of 444250421 is about 763.0317615050.

The spelling of 444250421 in words is "four hundred forty-four million, two hundred fifty thousand, four hundred twenty-one".