442144099 has 2 divisors, whose sum is σ = 442144100. Its totient is φ = 442144098.

The previous prime is 442144097. The next prime is 442144151. The reversal of 442144099 is 990441244.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 442144099 - 2¹ = 442144097 is a prime.

Together with 442144097, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (442144093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221072049 + 221072050.

It is an arithmetic number, because the mean of its divisors is an integer number (221072050).

Almost surely, 2^442144099 is an apocalyptic number.

442144099 is a deficient number, since it is larger than the sum of its proper divisors (1).

442144099 is an equidigital number, since it uses as much as digits as its factorization.

442144099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 442144099 is about 21027.2228075892. Note that the first 3 decimals coincide. The cubic root of 442144099 is about 761.8239312091.

The spelling of 442144099 in words is "four hundred forty-two million, one hundred forty-four thousand, ninety-nine".