442439995 has 4 divisors (see below), whose sum is σ = 530928000. Its totient is φ = 353951992.

The previous prime is 442439957. The next prime is 442440007. The reversal of 442439995 is 599934244.

It is a happy number.

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 442439995 - 2⁹ = 442439483 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44243995 + ... + 44244004.

It is an arithmetic number, because the mean of its divisors is an integer number (132732000).

Almost surely, 2^442439995 is an apocalyptic number.

442439995 is a deficient number, since it is larger than the sum of its proper divisors (88488005).

442439995 is an equidigital number, since it uses as much as digits as its factorization.

442439995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88488004.

The product of its digits is 1399680, while the sum is 49.

The square root of 442439995 is about 21034.2576526960. The cubic root of 442439995 is about 761.9938384008.

The spelling of 442439995 in words is "four hundred forty-two million, four hundred thirty-nine thousand, nine hundred ninety-five".