442252313 has 2 divisors, whose sum is σ = 442252314. Its totient is φ = 442252312.

The previous prime is 442252301. The next prime is 442252319. The reversal of 442252313 is 313252244.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 438818704 + 3433609 = 20948^2 + 1853^2 .

It is a cyclic number.

It is not a de Polignac number, because 442252313 - 2¹⁶ = 442186777 is a prime.

It is not a weakly prime, because it can be changed into another prime (442252319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221126156 + 221126157.

It is an arithmetic number, because the mean of its divisors is an integer number (221126157).

Almost surely, 2^442252313 is an apocalyptic number.

It is an amenable number.

442252313 is a deficient number, since it is larger than the sum of its proper divisors (1).

442252313 is an equidigital number, since it uses as much as digits as its factorization.

442252313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5760, while the sum is 26.

The square root of 442252313 is about 21029.7958382862. The cubic root of 442252313 is about 761.8860778338.

The spelling of 442252313 in words is "four hundred forty-two million, two hundred fifty-two thousand, three hundred thirteen".