4449618 has 12 divisors (see below), whose sum is σ = 9640878. Its totient is φ = 1483200.

The previous prime is 4449617. The next prime is 4449619. The reversal of 4449618 is 8169444.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (4449617) and next prime (4449619).

It can be written as a sum of positive squares in only one way, i.e., 3697929 + 751689 = 1923^2 + 867^2 .

It is not an unprimeable number, because it can be changed into a prime (4449617) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 123583 + ... + 123618.

Almost surely, 2^4449618 is an apocalyptic number.

4449618 is an abundant number, since it is smaller than the sum of its proper divisors (5191260).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4449618 is a wasteful number, since it uses less digits than its factorization.

4449618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247209 (or 247206 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 4449618 is about 2109.4117663462. The cubic root of 4449618 is about 164.4779089769.

The spelling of 4449618 in words is "four million, four hundred forty-nine thousand, six hundred eighteen".