442104589 has 2 divisors, whose sum is σ = 442104590. Its totient is φ = 442104588.

The previous prime is 442104583. The next prime is 442104631. The reversal of 442104589 is 985401244.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 434722500 + 7382089 = 20850^2 + 2717^2 .

It is a cyclic number.

It is not a de Polignac number, because 442104589 - 2¹⁷ = 441973517 is a prime.

It is a super-2 number, since 2×442104589² = 390912935229717842, which contains 22 as substring.

It is equal to p_23456494 and since 442104589 and 23456494 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (442104583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221052294 + 221052295.

It is an arithmetic number, because the mean of its divisors is an integer number (221052295).

Almost surely, 2^442104589 is an apocalyptic number.

It is an amenable number.

442104589 is a deficient number, since it is larger than the sum of its proper divisors (1).

442104589 is an equidigital number, since it uses as much as digits as its factorization.

442104589 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46080, while the sum is 37.

The square root of 442104589 is about 21026.2832902061. The cubic root of 442104589 is about 761.8012383358.

The spelling of 442104589 in words is "four hundred forty-two million, one hundred four thousand, five hundred eighty-nine".