442323029 has 2 divisors, whose sum is σ = 442323030. Its totient is φ = 442323028.

The previous prime is 442322999. The next prime is 442323041. The reversal of 442323029 is 920323244.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 221206129 + 221116900 = 14873^2 + 14870^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-442323029 is a prime.

It is a super-3 number, since 3×442323029³ (a number of 27 digits) contains 333 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 442322992 and 442323010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (442323529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221161514 + 221161515.

It is an arithmetic number, because the mean of its divisors is an integer number (221161515).

Almost surely, 2^442323029 is an apocalyptic number.

It is an amenable number.

442323029 is a deficient number, since it is larger than the sum of its proper divisors (1).

442323029 is an equidigital number, since it uses as much as digits as its factorization.

442323029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 442323029 is about 21031.4770998140. The cubic root of 442323029 is about 761.9266841143.

The spelling of 442323029 in words is "four hundred forty-two million, three hundred twenty-three thousand, twenty-nine".