4449384225 has 144 divisors (see below), whose sum is σ = 9520265664. Its totient is φ = 1957824000.

The previous prime is 4449384221. The next prime is 4449384253. The reversal of 4449384225 is 5224839444.

4449384225 is a `hidden beast` number, since 4 + 4 + 49 + 384 + 225 = 666.

It is not a de Polignac number, because 4449384225 - 2² = 4449384221 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4449384221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 1961542 + ... + 1963808.

It is an arithmetic number, because the mean of its divisors is an integer number (66112956).

Almost surely, 2^4449384225 is an apocalyptic number.

4449384225 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4449384225 is an abundant number, since it is smaller than the sum of its proper divisors (5070881439).

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

4449384225 is a wasteful number, since it uses less digits than its factorization.

4449384225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2368 (or 2360 counting only the distinct ones).

The product of its digits is 1105920, while the sum is 45.

The square root of 4449384225 is about 66703.7047321961. The cubic root of 4449384225 is about 1644.7502846771.

The spelling of 4449384225 in words is "four billion, four hundred forty-nine million, three hundred eighty-four thousand, two hundred twenty-five".