4449988 has 24 divisors (see below), whose sum is σ = 8515584. Its totient is φ = 2025600.

The previous prime is 4449983. The next prime is 4449997. The reversal of 4449988 is 8899444.

It is a happy number.

It is a nialpdrome in base 9.

It is a zygodrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (4449983) 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 7 ways as a sum of consecutive naturals, for example, 1053 + ... + 3163.

It is an arithmetic number, because the mean of its divisors is an integer number (354816).

Almost surely, 2^4449988 is an apocalyptic number.

It is an amenable number.

4449988 is a deficient number, since it is larger than the sum of its proper divisors (4065596).

4449988 is a wasteful number, since it uses less digits than its factorization.

4449988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2163 (or 2161 counting only the distinct ones).

The product of its digits is 331776, while the sum is 46.

The square root of 4449988 is about 2109.4994666982. The cubic root of 4449988 is about 164.4824678057.

The spelling of 4449988 in words is "four million, four hundred forty-nine thousand, nine hundred eighty-eight".