442434859 has 2 divisors, whose sum is σ = 442434860. Its totient is φ = 442434858.

The previous prime is 442434847. The next prime is 442434901. The reversal of 442434859 is 958434244.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 442434859 - 2¹³ = 442426667 is a prime.

It is not a weakly prime, because it can be changed into another prime (442434059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221217429 + 221217430.

It is an arithmetic number, because the mean of its divisors is an integer number (221217430).

Almost surely, 2^442434859 is an apocalyptic number.

442434859 is a deficient number, since it is larger than the sum of its proper divisors (1).

442434859 is an equidigital number, since it uses as much as digits as its factorization.

442434859 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 552960, while the sum is 43.

The square root of 442434859 is about 21034.1355657892. The cubic root of 442434859 is about 761.9908898914.

The spelling of 442434859 in words is "four hundred forty-two million, four hundred thirty-four thousand, eight hundred fifty-nine".