442522826 has 4 divisors (see below), whose sum is σ = 663784242. Its totient is φ = 221261412.

The previous prime is 442522823. The next prime is 442522831. The reversal of 442522826 is 628225244.

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., 283888801 + 158634025 = 16849^2 + 12595^2 .

It is not an unprimeable number, because it can be changed into a prime (442522823) by changing a digit.

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, 110630705 + ... + 110630708.

Almost surely, 2^442522826 is an apocalyptic number.

442522826 is a deficient number, since it is larger than the sum of its proper divisors (221261416).

442522826 is a wasteful number, since it uses less digits than its factorization.

442522826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221261415.

The product of its digits is 61440, while the sum is 35.

The square root of 442522826 is about 21036.2265152284. The cubic root of 442522826 is about 762.0413874274.

The spelling of 442522826 in words is "four hundred forty-two million, five hundred twenty-two thousand, eight hundred twenty-six".