422320815 has 24 divisors (see below), whose sum is σ = 836598048. Its totient is φ = 193060800.

The previous prime is 422320799. The next prime is 422320819. The reversal of 422320815 is 518023224.

It is not a de Polignac number, because 422320815 - 2⁴ = 422320799 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422320819) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 670036 + ... + 670665.

It is an arithmetic number, because the mean of its divisors is an integer number (34858252).

Almost surely, 2^422320815 is an apocalyptic number.

422320815 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

422320815 is a deficient number, since it is larger than the sum of its proper divisors (414277233).

422320815 is a wasteful number, since it uses less digits than its factorization.

422320815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1340719 (or 1340716 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 422320815 is about 20550.4456156065. The cubic root of 422320815 is about 750.2640936618.

The spelling of 422320815 in words is "four hundred twenty-two million, three hundred twenty thousand, eight hundred fifteen".