442469 has 2 divisors, whose sum is σ = 442470. Its totient is φ = 442468.

The previous prime is 442457. The next prime is 442487. The reversal of 442469 is 964244.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 438244 + 4225 = 662^2 + 65^2 .

It is a cyclic number.

It is not a de Polignac number, because 442469 - 2¹⁶ = 376933 is a prime.

It is a super-2 number, since 2×442469² = 391557631922, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 442469.

It is not a weakly prime, because it can be changed into another prime (442439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221234 + 221235.

It is an arithmetic number, because the mean of its divisors is an integer number (221235).

2⁴⁴²⁴⁶⁹ is an apocalyptic number.

It is an amenable number.

442469 is a deficient number, since it is larger than the sum of its proper divisors (1).

442469 is an equidigital number, since it uses as much as digits as its factorization.

442469 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6912, while the sum is 29.

The square root of 442469 is about 665.1834333475. The cubic root of 442469 is about 76.2010489358.

The spelling of 442469 in words is "four hundred forty-two thousand, four hundred sixty-nine".