44447328 has 72 divisors (see below), whose sum is σ = 127331568. Its totient is φ = 14706432.

The previous prime is 44447317. The next prime is 44447353. The reversal of 44447328 is 82374444.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 44447292 and 44447301.

It is a congruent number.

It is an unprimeable number.

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, 44725 + ... + 45707.

It is an arithmetic number, because the mean of its divisors is an integer number (1768494).

Almost surely, 2^44447328 is an apocalyptic number.

44447328 is a gapful number since it is divisible by the number (48) 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 44447328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63665784).

44447328 is an abundant number, since it is smaller than the sum of its proper divisors (82884240).

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

44447328 is a wasteful number, since it uses less digits than its factorization.

44447328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1156 (or 1145 counting only the distinct ones).

The product of its digits is 86016, while the sum is 36.

The square root of 44447328 is about 6666.8829298256. The cubic root of 44447328 is about 354.2271834828.

The spelling of 44447328 in words is "forty-four million, four hundred forty-seven thousand, three hundred twenty-eight".