439422 has 8 divisors (see below), whose sum is σ = 878856. Its totient is φ = 146472.

The previous prime is 439421. The next prime is 439427. The reversal of 439422 is 224934.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

439422 is an admirable number.

It is a super-3 number, since 3×439422³ = 254546215193338344, which contains 333 as substring.

It is a d-powerful number, because it can be written as 4² + 3¹¹ + 4⁹ + 9² + 2 + 2⁵ .

It is a junction number, because it is equal to n+sod(n) for n = 439392 and 439401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (439421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36613 + ... + 36624.

It is an arithmetic number, because the mean of its divisors is an integer number (109857).

2⁴³⁹⁴²² is an apocalyptic number.

439422 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

439422 is a wasteful number, since it uses less digits than its factorization.

439422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73242.

The product of its digits is 1728, while the sum is 24.

The square root of 439422 is about 662.8891310016. The cubic root of 439422 is about 76.0257299769.

It can be divided in two parts, 439 and 422, that added together give a triangular number (861 = T₄₁).

The spelling of 439422 in words is "four hundred thirty-nine thousand, four hundred twenty-two".