4490385485 has 4 divisors (see below), whose sum is σ = 5388462588. Its totient is φ = 3592308384.

The previous prime is 4490385481. The next prime is 4490385509. The reversal of 4490385485 is 5845830944.

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 2492206084 + 1998179401 = 49922^2 + 44701^2 .

It is a cyclic number.

It is not a de Polignac number, because 4490385485 - 2² = 4490385481 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 (4490385481) 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, 449038544 + ... + 449038553.

It is an arithmetic number, because the mean of its divisors is an integer number (1347115647).

Almost surely, 2^4490385485 is an apocalyptic number.

It is an amenable number.

4490385485 is a deficient number, since it is larger than the sum of its proper divisors (898077103).

4490385485 is an equidigital number, since it uses as much as digits as its factorization.

4490385485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 898077102.

The product of its (nonzero) digits is 2764800, while the sum is 50.

The square root of 4490385485 is about 67010.3386426304. The cubic root of 4490385485 is about 1649.7869923988.

The spelling of 4490385485 in words is "four billion, four hundred ninety million, three hundred eighty-five thousand, four hundred eighty-five".