420622 has 8 divisors (see below), whose sum is σ = 664200. Its totient is φ = 199224.

The previous prime is 420613. The next prime is 420671. The reversal of 420622 is 226024.

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 = 420596 and 420605.

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, 5497 + ... + 5572.

It is an arithmetic number, because the mean of its divisors is an integer number (83025).

2⁴²⁰⁶²² is an apocalyptic number.

420622 is a deficient number, since it is larger than the sum of its proper divisors (243578).

420622 is a wasteful number, since it uses less digits than its factorization.

420622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11090.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 420622 is about 648.5537757195. The cubic root of 420622 is about 74.9256745154.

Adding to 420622 its reverse (226024), we get a palindrome (646646).

The spelling of 420622 in words is "four hundred twenty thousand, six hundred twenty-two".