422578442 has 16 divisors (see below), whose sum is σ = 744684192. Its totient is φ = 177305520.

The previous prime is 422578427. The next prime is 422578451. The reversal of 422578442 is 244875224.

It is a junction number, because it is equal to n+sod(n) for n = 422578396 and 422578405.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 738488 + ... + 739059.

It is an arithmetic number, because the mean of its divisors is an integer number (46542762).

Almost surely, 2^422578442 is an apocalyptic number.

422578442 is a deficient number, since it is larger than the sum of its proper divisors (322105750).

422578442 is a wasteful number, since it uses less digits than its factorization.

422578442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1477573.

The product of its digits is 143360, while the sum is 38.

The square root of 422578442 is about 20556.7128208768. The cubic root of 422578442 is about 750.4166230427.

The spelling of 422578442 in words is "four hundred twenty-two million, five hundred seventy-eight thousand, four hundred forty-two".