442071611 has 4 divisors (see below), whose sum is σ = 443791992. Its totient is φ = 440351232.

The previous prime is 442071607. The next prime is 442071629. The reversal of 442071611 is 116170244.

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 442071611 - 2² = 442071607 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (442076611) by changing a digit.

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, 859805 + ... + 860318.

It is an arithmetic number, because the mean of its divisors is an integer number (110947998).

Almost surely, 2^442071611 is an apocalyptic number.

442071611 is a deficient number, since it is larger than the sum of its proper divisors (1720381).

442071611 is a wasteful number, since it uses less digits than its factorization.

442071611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1720380.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 442071611 is about 21025.4990666096. The cubic root of 442071611 is about 761.7822961318.

The spelling of 442071611 in words is "four hundred forty-two million, seventy-one thousand, six hundred eleven".