44445000 has 80 divisors (see below), whose sum is σ = 138893040. Its totient is φ = 11848000.

The previous prime is 44444999. The next prime is 44445001. The reversal of 44445000 is 54444.

It is an interprime number because it is at equal distance from previous prime (44444999) and next prime (44445001).

It is not an unprimeable number, because it can be changed into a prime (44445001) 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 19 ways as a sum of consecutive naturals, for example, 13519 + ... + 16481.

It is an arithmetic number, because the mean of its divisors is an integer number (1736163).

Almost surely, 2^44445000 is an apocalyptic number.

44445000 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 44445000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69446520).

44445000 is an abundant number, since it is smaller than the sum of its proper divisors (94448040).

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

44445000 is a wasteful number, since it uses less digits than its factorization.

44445000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2992 (or 2973 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 21.

The square root of 44445000 is about 6666.7083332031. The cubic root of 44445000 is about 354.2209989694.

Adding to 44445000 its reverse (54444), we get a palindrome (44499444).

The spelling of 44445000 in words is "forty-four million, four hundred forty-five thousand".