442672522 has 4 divisors (see below), whose sum is σ = 664008786. Its totient is φ = 221336260.

The previous prime is 442672519. The next prime is 442672541. The reversal of 442672522 is 225276244.

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., 377563761 + 65108761 = 19431^2 + 8069^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110668129 + ... + 110668132.

Almost surely, 2^442672522 is an apocalyptic number.

442672522 is a deficient number, since it is larger than the sum of its proper divisors (221336264).

442672522 is a wasteful number, since it uses less digits than its factorization.

442672522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221336263.

The product of its digits is 53760, while the sum is 34.

The square root of 442672522 is about 21039.7842669548. The cubic root of 442672522 is about 762.1273051701.

The spelling of 442672522 in words is "four hundred forty-two million, six hundred seventy-two thousand, five hundred twenty-two".