420216 has 16 divisors (see below), whose sum is σ = 1050600. Its totient is φ = 140064.

The previous prime is 420193. The next prime is 420221. The reversal of 420216 is 612024.

It is a junction number, because it is equal to n+sod(n) for n = 420195 and 420204.

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, 8731 + ... + 8778.

2⁴²⁰²¹⁶ is an apocalyptic number.

It is an amenable number.

420216 is an abundant number, since it is smaller than the sum of its proper divisors (630384).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

420216 is a wasteful number, since it uses less digits than its factorization.

420216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17518 (or 17514 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 420216 is about 648.2406960381. The cubic root of 420216 is about 74.9015597390.

It can be divided in two parts, 420 and 216, that added together give a palindrome (636).

The spelling of 420216 in words is "four hundred twenty thousand, two hundred sixteen".