4449984 has 168 divisors, whose sum is σ = 15288768. Its totient is φ = 1128960.

The previous prime is 4449983. The next prime is 4449997. The reversal of 4449984 is 4899444.

It is a tau number, because it is divible by the number of its divisors (168).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4449983) 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, 103467 + ... + 103509.

Almost surely, 2^4449984 is an apocalyptic number.

4449984 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4449984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7644384).

4449984 is an abundant number, since it is smaller than the sum of its proper divisors (10838784).

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

4449984 is a wasteful number, since it uses less digits than its factorization.

4449984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83 (or 66 counting only the distinct ones).

The product of its digits is 165888, while the sum is 42.

The square root of 4449984 is about 2109.4985186058. The cubic root of 4449984 is about 164.4824185224.

The spelling of 4449984 in words is "four million, four hundred forty-nine thousand, nine hundred eighty-four".