442539105 has 16 divisors (see below), whose sum is σ = 730904064. Its totient is φ = 228407040.

The previous prime is 442539077. The next prime is 442539107. The reversal of 442539105 is 501935244.

It is not a de Polignac number, because 442539105 - 2⁵ = 442539073 is a prime.

It is a super-4 number, since 4×442539105⁴ (a number of 36 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (442539107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 475384 + ... + 476313.

It is an arithmetic number, because the mean of its divisors is an integer number (45681504).

Almost surely, 2^442539105 is an apocalyptic number.

It is an amenable number.

442539105 is a deficient number, since it is larger than the sum of its proper divisors (288364959).

442539105 is a wasteful number, since it uses less digits than its factorization.

442539105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 951736.

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 442539105 is about 21036.6134394298. The cubic root of 442539105 is about 762.0507316683.

The spelling of 442539105 in words is "four hundred forty-two million, five hundred thirty-nine thousand, one hundred five".