442829 has 2 divisors, whose sum is σ = 442830. Its totient is φ = 442828.

The previous prime is 442823. The next prime is 442831. The reversal of 442829 is 928244.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 354025 + 88804 = 595^2 + 298^2 .

It is a cyclic number.

It is not a de Polignac number, because 442829 - 2⁸ = 442573 is a prime.

Together with 442831, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (442823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221414 + 221415.

It is an arithmetic number, because the mean of its divisors is an integer number (221415).

2⁴⁴²⁸²⁹ is an apocalyptic number.

It is an amenable number.

442829 is a deficient number, since it is larger than the sum of its proper divisors (1).

442829 is an equidigital number, since it uses as much as digits as its factorization.

442829 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4608, while the sum is 29.

The square root of 442829 is about 665.4539803773. The cubic root of 442829 is about 76.2217094726.

The spelling of 442829 in words is "four hundred forty-two thousand, eight hundred twenty-nine".