442929313 has 2 divisors, whose sum is σ = 442929314. Its totient is φ = 442929312.

The previous prime is 442929307. The next prime is 442929317. The reversal of 442929313 is 313929244.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 235223569 + 207705744 = 15337^2 + 14412^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-442929313 is a prime.

It is not a weakly prime, because it can be changed into another prime (442929317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221464656 + 221464657.

It is an arithmetic number, because the mean of its divisors is an integer number (221464657).

Almost surely, 2^442929313 is an apocalyptic number.

It is an amenable number.

442929313 is a deficient number, since it is larger than the sum of its proper divisors (1).

442929313 is an equidigital number, since it uses as much as digits as its factorization.

442929313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46656, while the sum is 37.

The square root of 442929313 is about 21045.8858924969. The cubic root of 442929313 is about 762.2746447891.

The spelling of 442929313 in words is "four hundred forty-two million, nine hundred twenty-nine thousand, three hundred thirteen".