422834478 has 32 divisors (see below), whose sum is σ = 924054912. Its totient is φ = 127922400.

The previous prime is 422834431. The next prime is 422834479. The reversal of 422834478 is 874438224.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422834479) 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, 38193 + ... + 48003.

It is an arithmetic number, because the mean of its divisors is an integer number (28876716).

Almost surely, 2^422834478 is an apocalyptic number.

422834478 is an abundant number, since it is smaller than the sum of its proper divisors (501220434).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

422834478 is a wasteful number, since it uses less digits than its factorization.

422834478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10480.

The product of its digits is 344064, while the sum is 42.

The square root of 422834478 is about 20562.9394299550. The cubic root of 422834478 is about 750.5681490557.

The spelling of 422834478 in words is "four hundred twenty-two million, eight hundred thirty-four thousand, four hundred seventy-eight".