438422 has 8 divisors (see below), whose sum is σ = 680400. Its totient is φ = 211624.

The previous prime is 438419. The next prime is 438439. The reversal of 438422 is 224834.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3722 + ... + 3837.

It is an arithmetic number, because the mean of its divisors is an integer number (85050).

2⁴³⁸⁴²² is an apocalyptic number.

438422 is a deficient number, since it is larger than the sum of its proper divisors (241978).

438422 is a wasteful number, since it uses less digits than its factorization.

438422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7590.

The product of its digits is 1536, while the sum is 23.

The square root of 438422 is about 662.1344274390. The cubic root of 438422 is about 75.9680151652.

The spelling of 438422 in words is "four hundred thirty-eight thousand, four hundred twenty-two".