42323522 has 4 divisors (see below), whose sum is σ = 63485286. Its totient is φ = 21161760.

The previous prime is 42323503. The next prime is 42323537. The reversal of 42323522 is 22532324.

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., 33744481 + 8579041 = 5809^2 + 2929^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10580879 + ... + 10580882.

Almost surely, 2^42323522 is an apocalyptic number.

42323522 is a deficient number, since it is larger than the sum of its proper divisors (21161764).

42323522 is a wasteful number, since it uses less digits than its factorization.

42323522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21161763.

The product of its digits is 2880, while the sum is 23.

The square root of 42323522 is about 6505.6530802065. The cubic root of 42323522 is about 348.4928993282.

Adding to 42323522 its reverse (22532324), we get a palindrome (64855846).

The spelling of 42323522 in words is "forty-two million, three hundred twenty-three thousand, five hundred twenty-two".