442604443 has 2 divisors, whose sum is σ = 442604444. Its totient is φ = 442604442.

The previous prime is 442604413. The next prime is 442604447. The reversal of 442604443 is 344406244.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 442604443 - 2¹⁷ = 442473371 is a prime.

It is not a weakly prime, because it can be changed into another prime (442604447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221302221 + 221302222.

It is an arithmetic number, because the mean of its divisors is an integer number (221302222).

Almost surely, 2^442604443 is an apocalyptic number.

442604443 is a deficient number, since it is larger than the sum of its proper divisors (1).

442604443 is an equidigital number, since it uses as much as digits as its factorization.

442604443 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36864, while the sum is 31.

The square root of 442604443 is about 21038.1663412000. The cubic root of 442604443 is about 762.0882337556.

The spelling of 442604443 in words is "four hundred forty-two million, six hundred four thousand, four hundred forty-three".