442847072 has 48 divisors (see below), whose sum is σ = 885654000. Its totient is φ = 217950720.

The previous prime is 442847071. The next prime is 442847087. The reversal of 442847072 is 270748244.

It is a super-2 number, since 2×442847072² = 392227058357946368, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442847071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 624254 + ... + 624962.

It is an arithmetic number, because the mean of its divisors is an integer number (18451125).

Almost surely, 2^442847072 is an apocalyptic number.

It is an amenable number.

442847072 is a deficient number, since it is larger than the sum of its proper divisors (442806928).

442847072 is a wasteful number, since it uses less digits than its factorization.

442847072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 999 (or 991 counting only the distinct ones).

The product of its (nonzero) digits is 100352, while the sum is 38.

The square root of 442847072 is about 21043.9319519903. The cubic root of 442847072 is about 762.2274633634.

The spelling of 442847072 in words is "four hundred forty-two million, eight hundred forty-seven thousand, seventy-two".