442539752 has 16 divisors (see below), whose sum is σ = 833388900. Its totient is φ = 220302720.

The previous prime is 442539749. The next prime is 442539761. The reversal of 442539752 is 257935244.

It can be written as a sum of positive squares in 2 ways, for example, as 426587716 + 15952036 = 20654^2 + 3994^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118949 + ... + 122612.

Almost surely, 2^442539752 is an apocalyptic number.

It is an amenable number.

442539752 is a deficient number, since it is larger than the sum of its proper divisors (390849148).

442539752 is a wasteful number, since it uses less digits than its factorization.

442539752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241796 (or 241792 counting only the distinct ones).

The product of its digits is 302400, while the sum is 41.

The square root of 442539752 is about 21036.6288173747. The cubic root of 442539752 is about 762.0511030453.

The spelling of 442539752 in words is "four hundred forty-two million, five hundred thirty-nine thousand, seven hundred fifty-two".