442524172 has 12 divisors (see below), whose sum is σ = 774879336. Its totient is φ = 221130080.

The previous prime is 442524169. The next prime is 442524179. The reversal of 442524172 is 271425244.

It is a super-3 number, since 3×442524172³ (a number of 27 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (442524179) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25258 + ... + 39025.

It is an arithmetic number, because the mean of its divisors is an integer number (64573278).

Almost surely, 2^442524172 is an apocalyptic number.

It is an amenable number.

442524172 is a deficient number, since it is larger than the sum of its proper divisors (332355164).

442524172 is a wasteful number, since it uses less digits than its factorization.

442524172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66008 (or 66006 counting only the distinct ones).

The product of its digits is 17920, while the sum is 31.

The square root of 442524172 is about 21036.2585076339. The cubic root of 442524172 is about 762.0421600479.

The spelling of 442524172 in words is "four hundred forty-two million, five hundred twenty-four thousand, one hundred seventy-two".