442439327 has 4 divisors (see below), whose sum is σ = 482661096. Its totient is φ = 402217560.

The previous prime is 442439311. The next prime is 442439383. The reversal of 442439327 is 723934244.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 442439327 - 2⁴ = 442439311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442439827) 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, 20110868 + ... + 20110889.

It is an arithmetic number, because the mean of its divisors is an integer number (120665274).

Almost surely, 2^442439327 is an apocalyptic number.

442439327 is a deficient number, since it is larger than the sum of its proper divisors (40221769).

442439327 is a wasteful number, since it uses less digits than its factorization.

442439327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40221768.

The product of its digits is 145152, while the sum is 38.

The square root of 442439327 is about 21034.2417738315. The cubic root of 442439327 is about 761.9934549122.

The spelling of 442439327 in words is "four hundred forty-two million, four hundred thirty-nine thousand, three hundred twenty-seven".