420215 has 8 divisors (see below), whose sum is σ = 507840. Its totient is φ = 333792.

The previous prime is 420193. The next prime is 420221. The reversal of 420215 is 512024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 420215 - 2⁸ = 419959 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 420215.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 962 + ... + 1328.

It is an arithmetic number, because the mean of its divisors is an integer number (63480).

2⁴²⁰²¹⁵ is an apocalyptic number.

420215 is a deficient number, since it is larger than the sum of its proper divisors (87625).

420215 is a wasteful number, since it uses less digits than its factorization.

420215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 601.

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 420215 is about 648.2399247192. The cubic root of 420215 is about 74.9015003238.

Adding to 420215 its reverse (512024), we get a palindrome (932239).

Subtracting 420215 from its reverse (512024), we obtain a square (91809 = 303²).

The spelling of 420215 in words is "four hundred twenty thousand, two hundred fifteen".