444020407 has 2 divisors, whose sum is σ = 444020408. Its totient is φ = 444020406.

The previous prime is 444020389. The next prime is 444020413. The reversal of 444020407 is 704020444.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 444020407 - 2¹⁵ = 443987639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (444020477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222010203 + 222010204.

It is an arithmetic number, because the mean of its divisors is an integer number (222010204).

Almost surely, 2^444020407 is an apocalyptic number.

444020407 is a deficient number, since it is larger than the sum of its proper divisors (1).

444020407 is an equidigital number, since it uses as much as digits as its factorization.

444020407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3584, while the sum is 25.

The square root of 444020407 is about 21071.7917368220. The cubic root of 444020407 is about 762.9000502912.

The spelling of 444020407 in words is "four hundred forty-four million, twenty thousand, four hundred seven".