422243815 has 16 divisors (see below), whose sum is σ = 594729792. Its totient is φ = 281712384.

The previous prime is 422243803. The next prime is 422243819. The reversal of 422243815 is 518342224.

It is a cyclic number.

It is not a de Polignac number, because 422243815 - 2²⁵ = 388689383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422243819) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 161734 + ... + 164323.

It is an arithmetic number, because the mean of its divisors is an integer number (37170612).

Almost surely, 2^422243815 is an apocalyptic number.

422243815 is a deficient number, since it is larger than the sum of its proper divisors (172485977).

422243815 is a wasteful number, since it uses less digits than its factorization.

422243815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326106.

The product of its digits is 15360, while the sum is 31.

The square root of 422243815 is about 20548.5720915104. The cubic root of 422243815 is about 750.2184933784.

The spelling of 422243815 in words is "four hundred twenty-two million, two hundred forty-three thousand, eight hundred fifteen".