422415 has 40 divisors (see below), whose sum is σ = 871200. Its totient is φ = 191808.

The previous prime is 422407. The next prime is 422431. The reversal of 422415 is 514224.

It is not a de Polignac number, because 422415 - 2³ = 422407 is a prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 422415.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2761 + ... + 2909.

It is an arithmetic number, because the mean of its divisors is an integer number (21780).

2⁴²²⁴¹⁵ is an apocalyptic number.

422415 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

422415 is an abundant number, since it is smaller than the sum of its proper divisors (448785).

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

422415 is a wasteful number, since it uses less digits than its factorization.

422415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173 (or 164 counting only the distinct ones).

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

The square root of 422415 is about 649.9346120957. The cubic root of 422415 is about 75.0319863564.

Adding to 422415 its reverse (514224), we get a palindrome (936639).

Subtracting 422415 from its reverse (514224), we obtain a square (91809 = 303²).

The spelling of 422415 in words is "four hundred twenty-two thousand, four hundred fifteen".