442408093 has 2 divisors, whose sum is σ = 442408094. Its totient is φ = 442408092.

The previous prime is 442408073. The next prime is 442408121. The reversal of 442408093 is 390804244.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 396886084 + 45522009 = 19922^2 + 6747^2 .

It is a cyclic number.

It is not a de Polignac number, because 442408093 - 2⁵ = 442408061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (442408003) 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, 221204046 + 221204047.

It is an arithmetic number, because the mean of its divisors is an integer number (221204047).

Almost surely, 2^442408093 is an apocalyptic number.

It is an amenable number.

442408093 is a deficient number, since it is larger than the sum of its proper divisors (1).

442408093 is an equidigital number, since it uses as much as digits as its factorization.

442408093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27648, while the sum is 34.

The square root of 442408093 is about 21033.4993046806. The cubic root of 442408093 is about 761.9755235167.

The spelling of 442408093 in words is "four hundred forty-two million, four hundred eight thousand, ninety-three".