4490865 has 24 divisors (see below), whose sum is σ = 8124480. Its totient is φ = 2290464.

The previous prime is 4490861. The next prime is 4490867. The reversal of 4490865 is 5680944.

It is not a de Polignac number, because 4490865 - 2² = 4490861 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4490861) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1135 + ... + 3204.

It is an arithmetic number, because the mean of its divisors is an integer number (338520).

Almost surely, 2^4490865 is an apocalyptic number.

4490865 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4490865 is a deficient number, since it is larger than the sum of its proper divisors (3633615).

4490865 is a wasteful number, since it uses less digits than its factorization.

4490865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4373 (or 4370 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 4490865 is about 2119.1661095818. The cubic root of 4490865 is about 164.9845715602.

It can be divided in two parts, 44 and 90865, that added together give a palindrome (90909).

The spelling of 4490865 in words is "four million, four hundred ninety thousand, eight hundred sixty-five".