4364440085 has 4 divisors (see below), whose sum is σ = 5237328108. Its totient is φ = 3491552064.

The previous prime is 4364440081. The next prime is 4364440097. The reversal of 4364440085 is 5800444634.

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 2266616881 + 2097823204 = 47609^2 + 45802^2 .

It is a cyclic number.

It is not a de Polignac number, because 4364440085 - 2² = 4364440081 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 (4364440081) 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, 436444004 + ... + 436444013.

It is an arithmetic number, because the mean of its divisors is an integer number (1309332027).

Almost surely, 2^4364440085 is an apocalyptic number.

It is an amenable number.

4364440085 is a deficient number, since it is larger than the sum of its proper divisors (872888023).

4364440085 is an equidigital number, since it uses as much as digits as its factorization.

4364440085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 872888022.

The product of its (nonzero) digits is 184320, while the sum is 38.

The square root of 4364440085 is about 66063.9090956628. The cubic root of 4364440085 is about 1634.2162022962.

The spelling of 4364440085 in words is "four billion, three hundred sixty-four million, four hundred forty thousand, eighty-five".