442514665 has 4 divisors (see below), whose sum is σ = 531017604. Its totient is φ = 354011728.

The previous prime is 442514663. The next prime is 442514669. The reversal of 442514665 is 566415244.

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

It can be written as a sum of positive squares in 2 ways, for example, as 158558464 + 283956201 = 12592^2 + 16851^2 .

It is a cyclic number.

It is not a de Polignac number, because 442514665 - 2¹ = 442514663 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (442514663) 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, 44251462 + ... + 44251471.

It is an arithmetic number, because the mean of its divisors is an integer number (132754401).

Almost surely, 2^442514665 is an apocalyptic number.

It is an amenable number.

442514665 is a deficient number, since it is larger than the sum of its proper divisors (88502939).

442514665 is an equidigital number, since it uses as much as digits as its factorization.

442514665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88502938.

The product of its digits is 115200, while the sum is 37.

The square root of 442514665 is about 21036.0325394310. The cubic root of 442514665 is about 762.0367028796.

The spelling of 442514665 in words is "four hundred forty-two million, five hundred fourteen thousand, six hundred sixty-five".