442328137 has 2 divisors, whose sum is σ = 442328138. Its totient is φ = 442328136.

The previous prime is 442328123. The next prime is 442328167. The reversal of 442328137 is 731823244.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 430106121 + 12222016 = 20739^2 + 3496^2 .

It is a cyclic number.

It is not a de Polignac number, because 442328137 - 2⁷ = 442328009 is a prime.

It is not a weakly prime, because it can be changed into another prime (442328167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221164068 + 221164069.

It is an arithmetic number, because the mean of its divisors is an integer number (221164069).

Almost surely, 2^442328137 is an apocalyptic number.

It is an amenable number.

442328137 is a deficient number, since it is larger than the sum of its proper divisors (1).

442328137 is an equidigital number, since it uses as much as digits as its factorization.

442328137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32256, while the sum is 34.

The square root of 442328137 is about 21031.5985364879. The cubic root of 442328137 is about 761.9296170436.

The spelling of 442328137 in words is "four hundred forty-two million, three hundred twenty-eight thousand, one hundred thirty-seven".