442442024 has 8 divisors (see below), whose sum is σ = 829578810. Its totient is φ = 221221008.

The previous prime is 442442023. The next prime is 442442027. The reversal of 442442024 is 420244244.

It can be written as a sum of positive squares in only one way, i.e., 336722500 + 105719524 = 18350^2 + 10282^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 442441984 and 442442002.

It is not an unprimeable number, because it can be changed into a prime (442442023) 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, 27652619 + ... + 27652634.

Almost surely, 2^442442024 is an apocalyptic number.

It is an amenable number.

442442024 is a deficient number, since it is larger than the sum of its proper divisors (387136786).

442442024 is a wasteful number, since it uses less digits than its factorization.

442442024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55305259 (or 55305255 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 26.

The square root of 442442024 is about 21034.3058834847. The cubic root of 442442024 is about 761.9950032165.

Adding to 442442024 its reverse (420244244), we get a palindrome (862686268).

The spelling of 442442024 in words is "four hundred forty-two million, four hundred forty-two thousand, twenty-four".