422814478 has 16 divisors (see below), whose sum is σ = 643124160. Its totient is φ = 208447200.

The previous prime is 422814449. The next prime is 422814479. The reversal of 422814478 is 874418224.

It is a self number, because there is not a number n which added to its sum of digits gives 422814478.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422814479) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 160008 + ... + 162628.

It is an arithmetic number, because the mean of its divisors is an integer number (40195260).

Almost surely, 2^422814478 is an apocalyptic number.

422814478 is a deficient number, since it is larger than the sum of its proper divisors (220309682).

422814478 is a wasteful number, since it uses less digits than its factorization.

422814478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3723.

The product of its digits is 114688, while the sum is 40.

The square root of 422814478 is about 20562.4531124085. The cubic root of 422814478 is about 750.5563149532.

The spelling of 422814478 in words is "four hundred twenty-two million, eight hundred fourteen thousand, four hundred seventy-eight".