420343 has 16 divisors (see below), whose sum is σ = 539136.
Its totient is φ = 318240.
The previous prime is 420341. The next prime is 420349. The reversal of 420343 is 343024.
Adding to 420343 its reverse (343024), we get a palindrome (763367).
It is a cyclic number.
It is not a de Polignac number, because 420343 - 21 = 420341 is a prime.
It is a deceptive number, since it divides R420342.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (420341) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4030 + ... + 4132.
It is an arithmetic number, because the mean of its divisors is an integer number (33696).
2420343 is an apocalyptic number.
420343 is a deficient number, since it is larger than the sum of its proper divisors (118793).
420343 is a wasteful number, since it uses less digits than its factorization.
420343 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 174.
The product of its (nonzero) digits is 288, while the sum is 16.
The square root of 420343 is about 648.3386460793.
The cubic root of 420343 is about 74.9091046999.
The spelling of 420343 in words is "four hundred twenty thousand, three hundred forty-three", and thus it is an iban number.