442022544 has 60 divisors (see below), whose sum is σ = 1260411516. Its totient is φ = 144558336.

The previous prime is 442022527. The next prime is 442022549. The reversal of 442022544 is 445220244.

It can be written as a sum of positive squares in 2 ways, for example, as 304851600 + 137170944 = 17460^2 + 11712^2 .

It is not an unprimeable number, because it can be changed into a prime (442022549) 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 in 11 ways as a sum of consecutive naturals, for example, 21327 + ... + 36590.

Almost surely, 2^442022544 is an apocalyptic number.

It is an amenable number.

442022544 is an abundant number, since it is smaller than the sum of its proper divisors (818388972).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

442022544 is a wasteful number, since it uses less digits than its factorization.

442022544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57984 (or 57975 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 27.

The square root of 442022544 is about 21024.3321891564. The cubic root of 442022544 is about 761.7541108378.

Adding to 442022544 its reverse (445220244), we get a palindrome (887242788).

The spelling of 442022544 in words is "four hundred forty-two million, twenty-two thousand, five hundred forty-four".