442071313 has 2 divisors, whose sum is σ = 442071314. Its totient is φ = 442071312.

The previous prime is 442071269. The next prime is 442071319. The reversal of 442071313 is 313170244.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 361646289 + 80425024 = 19017^2 + 8968^2 .

It is a cyclic number.

It is not a de Polignac number, because 442071313 - 2⁹ = 442070801 is a prime.

It is not a weakly prime, because it can be changed into another prime (442071319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221035656 + 221035657.

It is an arithmetic number, because the mean of its divisors is an integer number (221035657).

Almost surely, 2^442071313 is an apocalyptic number.

It is an amenable number.

442071313 is a deficient number, since it is larger than the sum of its proper divisors (1).

442071313 is an equidigital number, since it uses as much as digits as its factorization.

442071313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 442071313 is about 21025.4919799752. The cubic root of 442071313 is about 761.7821249595.

The spelling of 442071313 in words is "four hundred forty-two million, seventy-one thousand, three hundred thirteen".