408422 has 8 divisors (see below), whose sum is σ = 700176. Its totient is φ = 175032.

The previous prime is 408413. The next prime is 408427. The reversal of 408422 is 224804.

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

It is a junction number, because it is equal to n+sod(n) for n = 408394 and 408403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (408427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14573 + ... + 14600.

It is an arithmetic number, because the mean of its divisors is an integer number (87522).

2⁴⁰⁸⁴²² is an apocalyptic number.

408422 is a deficient number, since it is larger than the sum of its proper divisors (291754).

408422 is a wasteful number, since it uses less digits than its factorization.

408422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29182.

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 408422 is about 639.0790248475. The cubic root of 408422 is about 74.1941577729.

The spelling of 408422 in words is "four hundred eight thousand, four hundred twenty-two".