442517272 has 8 divisors (see below), whose sum is σ = 829719900. Its totient is φ = 221258632.

The previous prime is 442517269. The next prime is 442517279. The reversal of 442517272 is 272715244.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442517279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27657322 + ... + 27657337.

Almost surely, 2^442517272 is an apocalyptic number.

It is an amenable number.

442517272 is a deficient number, since it is larger than the sum of its proper divisors (387202628).

442517272 is a wasteful number, since it uses less digits than its factorization.

442517272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55314665 (or 55314661 counting only the distinct ones).

The product of its digits is 31360, while the sum is 34.

The square root of 442517272 is about 21036.0945044464. The cubic root of 442517272 is about 762.0381993466.

It can be divided in two parts, 4425172 and 72, that added together give a palindrome (4425244).

The spelling of 442517272 in words is "four hundred forty-two million, five hundred seventeen thousand, two hundred seventy-two".