4499645 has 8 divisors (see below), whose sum is σ = 5717304. Its totient is φ = 3387904.

The previous prime is 4499623. The next prime is 4499659. The reversal of 4499645 is 5469944.

It can be written as a sum of positive squares in 4 ways, for example, as 1352569 + 3147076 = 1163^2 + 1774^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4499645 - 2⁶ = 4499581 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26384 + ... + 26553.

It is an arithmetic number, because the mean of its divisors is an integer number (714663).

Almost surely, 2^4499645 is an apocalyptic number.

It is an amenable number.

4499645 is a deficient number, since it is larger than the sum of its proper divisors (1217659).

4499645 is a wasteful number, since it uses less digits than its factorization.

4499645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52959.

The product of its digits is 155520, while the sum is 41.

The square root of 4499645 is about 2121.2366676069. The cubic root of 4499645 is about 165.0920209077.

Subtracting 4499645 from its reverse (5469944), we obtain a cube (970299 = 99³).

The spelling of 4499645 in words is "four million, four hundred ninety-nine thousand, six hundred forty-five".