422729522 has 4 divisors (see below), whose sum is σ = 634094286. Its totient is φ = 211364760.

The previous prime is 422729521. The next prime is 422729563. The reversal of 422729522 is 225927224.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 232593001 + 190136521 = 15251^2 + 13789^2 .

It is not an unprimeable number, because it can be changed into a prime (422729521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105682379 + ... + 105682382.

Almost surely, 2^422729522 is an apocalyptic number.

422729522 is a deficient number, since it is larger than the sum of its proper divisors (211364764).

422729522 is a wasteful number, since it uses less digits than its factorization.

422729522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211364763.

The product of its digits is 40320, while the sum is 35.

The square root of 422729522 is about 20560.3872045251. The cubic root of 422729522 is about 750.5060418928.

The spelling of 422729522 in words is "four hundred twenty-two million, seven hundred twenty-nine thousand, five hundred twenty-two".