442069 has 2 divisors, whose sum is σ = 442070. Its totient is φ = 442068.

The previous prime is 442061. The next prime is 442097. The reversal of 442069 is 960244.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 439569 + 2500 = 663^2 + 50^2 .

It is a cyclic number.

It is not a de Polignac number, because 442069 - 2³ = 442061 is a prime.

It is a super-2 number, since 2×442069² = 390850001522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (442061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221034 + 221035.

It is an arithmetic number, because the mean of its divisors is an integer number (221035).

2⁴⁴²⁰⁶⁹ is an apocalyptic number.

It is an amenable number.

442069 is a deficient number, since it is larger than the sum of its proper divisors (1).

442069 is an equidigital number, since it uses as much as digits as its factorization.

442069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 442069 is about 664.8826964210. The cubic root of 442069 is about 76.1780796362.

It can be divided in two parts, 4420 and 69, that added together give a square (4489 = 67²).

The spelling of 442069 in words is "four hundred forty-two thousand, sixty-nine".