420211 has 4 divisors (see below), whose sum is σ = 458424. Its totient is φ = 382000.

The previous prime is 420193. The next prime is 420221. The reversal of 420211 is 112024.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 420211 - 2¹³ = 412019 is a prime.

It is a Duffinian number.

420211 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (420221) 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, 19090 + ... + 19111.

It is an arithmetic number, because the mean of its divisors is an integer number (114606).

2⁴²⁰²¹¹ is an apocalyptic number.

420211 is a deficient number, since it is larger than the sum of its proper divisors (38213).

420211 is a wasteful number, since it uses less digits than its factorization.

420211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38212.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 420211 is about 648.2368394345. The cubic root of 420211 is about 74.9012626621.

Adding to 420211 its reverse (112024), we get a palindrome (532235).

The spelling of 420211 in words is "four hundred twenty thousand, two hundred eleven", and thus it is an iban number.