406342 has 8 divisors (see below), whose sum is σ = 614376.
Its totient is φ = 201552.
The previous prime is 406339. The next prime is 406349. The reversal of 406342 is 243604.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a super-2 number, since 2×4063422 = 330227641928, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (406349) 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, 468 + ... + 1015.
It is an arithmetic number, because the mean of its divisors is an integer number (76797).
2406342 is an apocalyptic number.
406342 is a deficient number, since it is larger than the sum of its proper divisors (208034).
406342 is a wasteful number, since it uses less digits than its factorization.
406342 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1622.
The product of its (nonzero) digits is 576, while the sum is 19.
The square root of 406342 is about 637.4496058513.
The cubic root of 406342 is about 74.0679920500.
Adding to 406342 its reverse (243604), we get a palindrome (649946).
The spelling of 406342 in words is "four hundred six thousand, three hundred forty-two".