442351361 has 2 divisors, whose sum is σ = 442351362. Its totient is φ = 442351360.

The previous prime is 442351291. The next prime is 442351397. The reversal of 442351361 is 163153244.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 442302961 + 48400 = 21031^2 + 220^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-442351361 is a prime.

It is not a weakly prime, because it can be changed into another prime (442351061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221175680 + 221175681.

It is an arithmetic number, because the mean of its divisors is an integer number (221175681).

Almost surely, 2^442351361 is an apocalyptic number.

It is an amenable number.

442351361 is a deficient number, since it is larger than the sum of its proper divisors (1).

442351361 is an equidigital number, since it uses as much as digits as its factorization.

442351361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8640, while the sum is 29.

The square root of 442351361 is about 21032.1506508488. The cubic root of 442351361 is about 761.9429515965.

The spelling of 442351361 in words is "four hundred forty-two million, three hundred fifty-one thousand, three hundred sixty-one".