422723158 has 32 divisors (see below), whose sum is σ = 748151712. Its totient is φ = 176601600.

The previous prime is 422723149. The next prime is 422723159. The reversal of 422723158 is 851327224.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422723159) 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, 65860 + ... + 71992.

It is an arithmetic number, because the mean of its divisors is an integer number (23379741).

Almost surely, 2^422723158 is an apocalyptic number.

422723158 is a deficient number, since it is larger than the sum of its proper divisors (325428554).

422723158 is a wasteful number, since it uses less digits than its factorization.

422723158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6400.

The product of its digits is 26880, while the sum is 34.

The square root of 422723158 is about 20560.2324403203. The cubic root of 422723158 is about 750.5022756986.

The spelling of 422723158 in words is "four hundred twenty-two million, seven hundred twenty-three thousand, one hundred fifty-eight".