444492493 has 2 divisors, whose sum is σ = 444492494. Its totient is φ = 444492492.

The previous prime is 444492491. The next prime is 444492497. The reversal of 444492493 is 394294444.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 355624164 + 88868329 = 18858^2 + 9427^2 .

It is a cyclic number.

It is not a de Polignac number, because 444492493 - 2¹ = 444492491 is a prime.

Together with 444492491, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (444492491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222246246 + 222246247.

It is an arithmetic number, because the mean of its divisors is an integer number (222246247).

Almost surely, 2^444492493 is an apocalyptic number.

It is an amenable number.

444492493 is a deficient number, since it is larger than the sum of its proper divisors (1).

444492493 is an equidigital number, since it uses as much as digits as its factorization.

444492493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 497664, while the sum is 43.

The square root of 444492493 is about 21082.9906085451. The cubic root of 444492493 is about 763.1703283109.

The spelling of 444492493 in words is "four hundred forty-four million, four hundred ninety-two thousand, four hundred ninety-three".