442298149 has 2 divisors, whose sum is σ = 442298150. Its totient is φ = 442298148.

The previous prime is 442298141. The next prime is 442298189. The reversal of 442298149 is 941892244.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 442260900 + 37249 = 21030^2 + 193^2 .

It is a cyclic number.

It is not a de Polignac number, because 442298149 - 2³ = 442298141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (442298141) 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, 221149074 + 221149075.

It is an arithmetic number, because the mean of its divisors is an integer number (221149075).

Almost surely, 2^442298149 is an apocalyptic number.

It is an amenable number.

442298149 is a deficient number, since it is larger than the sum of its proper divisors (1).

442298149 is an equidigital number, since it uses as much as digits as its factorization.

442298149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 165888, while the sum is 43.

The square root of 442298149 is about 21030.8855971402. The cubic root of 442298149 is about 761.9123981061.

The spelling of 442298149 in words is "four hundred forty-two million, two hundred ninety-eight thousand, one hundred forty-nine".