424215 has 24 divisors (see below), whose sum is σ = 803088. Its totient is φ = 205440.

The previous prime is 424199. The next prime is 424223. The reversal of 424215 is 512424.

It is not a de Polignac number, because 424215 - 2⁴ = 424199 is a prime.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 67 + ... + 923.

It is an arithmetic number, because the mean of its divisors is an integer number (33462).

2⁴²⁴²¹⁵ is an apocalyptic number.

424215 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

424215 is a deficient number, since it is larger than the sum of its proper divisors (378873).

424215 is a wasteful number, since it uses less digits than its factorization.

424215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 879 (or 876 counting only the distinct ones).

The product of its digits is 320, while the sum is 18.

The square root of 424215 is about 651.3178947334. The cubic root of 424215 is about 75.1384110745.

Adding to 424215 its reverse (512424), we get a palindrome (936639).

Subtracting 424215 from its reverse (512424), we obtain a square (88209 = 297²).

The spelling of 424215 in words is "four hundred twenty-four thousand, two hundred fifteen".