442622446 has 32 divisors (see below), whose sum is σ = 769470912. Its totient is φ = 187038720.

The previous prime is 442622441. The next prime is 442622473. The reversal of 442622446 is 644226244.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442622441) 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, 538716 + ... + 539536.

It is an arithmetic number, because the mean of its divisors is an integer number (24045966).

Almost surely, 2^442622446 is an apocalyptic number.

442622446 is a deficient number, since it is larger than the sum of its proper divisors (326848466).

442622446 is a wasteful number, since it uses less digits than its factorization.

442622446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1324.

The product of its digits is 73728, while the sum is 34.

The square root of 442622446 is about 21038.5942020849. The cubic root of 442622446 is about 762.0985662987.

The spelling of 442622446 in words is "four hundred forty-two million, six hundred twenty-two thousand, four hundred forty-six".