422820015 has 32 divisors (see below), whose sum is σ = 721908480. Its totient is φ = 210698496.

The previous prime is 422819963. The next prime is 422820059. The reversal of 422820015 is 510028224.

It is not a de Polignac number, because 422820015 - 2⁹ = 422819503 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 (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10644 + ... + 30966.

It is an arithmetic number, because the mean of its divisors is an integer number (22559640).

Almost surely, 2^422820015 is an apocalyptic number.

422820015 is a deficient number, since it is larger than the sum of its proper divisors (299088465).

422820015 is a wasteful number, since it uses less digits than its factorization.

422820015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20423.

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 422820015 is about 20562.5877505726. The cubic root of 422820015 is about 750.5595912619.

Adding to 422820015 its reverse (510028224), we get a palindrome (932848239).

The spelling of 422820015 in words is "four hundred twenty-two million, eight hundred twenty thousand, fifteen".