444440406247 has 2 divisors, whose sum is σ = 444440406248. Its totient is φ = 444440406246.

The previous prime is 444440406209. The next prime is 444440406257. The reversal of 444440406247 is 742604044444.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 444440406247 - 2⁷ = 444440406119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (444440406257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222220203123 + 222220203124.

It is an arithmetic number, because the mean of its divisors is an integer number (222220203124).

Almost surely, 2^444440406247 is an apocalyptic number.

444440406247 is a deficient number, since it is larger than the sum of its proper divisors (1).

444440406247 is an equidigital number, since it uses as much as digits as its factorization.

444440406247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1376256, while the sum is 43.

The spelling of 444440406247 in words is "four hundred forty-four billion, four hundred forty million, four hundred six thousand, two hundred forty-seven".