4442661607 has 4 divisors (see below), whose sum is σ = 4449166920. Its totient is φ = 4436156296.

The previous prime is 4442661599. The next prime is 4442661637. The reversal of 4442661607 is 7061662444.

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 4442661607 - 2³ = 4442661599 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4442661607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4442661637) 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, 3251632 + ... + 3252997.

It is an arithmetic number, because the mean of its divisors is an integer number (1112291730).

Almost surely, 2^4442661607 is an apocalyptic number.

4442661607 is a deficient number, since it is larger than the sum of its proper divisors (6505313).

4442661607 is an equidigital number, since it uses as much as digits as its factorization.

4442661607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6505312.

The product of its (nonzero) digits is 193536, while the sum is 40.

The square root of 4442661607 is about 66653.2940446307. The cubic root of 4442661607 is about 1643.9215107230.

The spelling of 4442661607 in words is "four billion, four hundred forty-two million, six hundred sixty-one thousand, six hundred seven".