408426 has 8 divisors (see below), whose sum is σ = 816864. Its totient is φ = 136140.

The previous prime is 408413. The next prime is 408427. The reversal of 408426 is 624804.

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

408426 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 408396 and 408405.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 408426.

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, 34030 + ... + 34041.

It is an arithmetic number, because the mean of its divisors is an integer number (102108).

2⁴⁰⁸⁴²⁶ is an apocalyptic number.

408426 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.

408426 is a wasteful number, since it uses less digits than its factorization.

408426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68076.

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 408426 is about 639.0821543432. The cubic root of 408426 is about 74.1943999862.

The spelling of 408426 in words is "four hundred eight thousand, four hundred twenty-six".