4450000 has 60 divisors (see below), whose sum is σ = 10897740. Its totient is φ = 1760000.

The previous prime is 4449997. The next prime is 4450003. The reversal of 4450000 is 544.

It is an interprime number because it is at equal distance from previous prime (4449997) and next prime (4450003).

It can be written as a sum of positive squares in 6 ways, for example, as 4145296 + 304704 = 2036^2 + 552^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4450003) 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 11 ways as a sum of consecutive naturals, for example, 49956 + ... + 50044.

It is an arithmetic number, because the mean of its divisors is an integer number (181629).

Almost surely, 2^4450000 is an apocalyptic number.

4450000 is a gapful number since it is divisible by the number (40) 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 4450000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5448870).

4450000 is an abundant number, since it is smaller than the sum of its proper divisors (6447740).

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

4450000 is an frugal number, since it uses more digits than its factorization.

4450000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122 (or 96 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 13.

The square root of 4450000 is about 2109.5023109729. The cubic root of 4450000 is about 164.4826156553.

Adding to 4450000 its reverse (544), we get a palindrome (4450544).

The spelling of 4450000 in words is "four million, four hundred fifty thousand".