422387215 has 4 divisors (see below), whose sum is σ = 506864664. Its totient is φ = 337909768.

The previous prime is 422387209. The next prime is 422387267. The reversal of 422387215 is 512783224.

It is a happy number.

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 422387215 - 2⁷ = 422387087 is a prime.

It is a Duffinian number.

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, 42238717 + ... + 42238726.

It is an arithmetic number, because the mean of its divisors is an integer number (126716166).

Almost surely, 2^422387215 is an apocalyptic number.

422387215 is a deficient number, since it is larger than the sum of its proper divisors (84477449).

422387215 is an equidigital number, since it uses as much as digits as its factorization.

422387215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84477448.

The product of its digits is 26880, while the sum is 34.

The square root of 422387215 is about 20552.0610888543. The cubic root of 422387215 is about 750.3034120531.

The spelling of 422387215 in words is "four hundred twenty-two million, three hundred eighty-seven thousand, two hundred fifteen".