44728321 has 8 divisors (see below), whose sum is σ = 48880800. Its totient is φ = 40590240.

The previous prime is 44728297. The next prime is 44728351. The reversal of 44728321 is 12382744.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 44728321 - 2⁵ = 44728289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44728351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3525 + ... + 10093.

It is an arithmetic number, because the mean of its divisors is an integer number (6110100).

It is a Proth number, since it is equal to 1365 ⋅ 2¹⁵ + 1 and 1365 < 2¹⁵.

Almost surely, 2^44728321 is an apocalyptic number.

It is an amenable number.

44728321 is a deficient number, since it is larger than the sum of its proper divisors (4152479).

44728321 is a wasteful number, since it uses less digits than its factorization.

44728321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7199.

The product of its digits is 10752, while the sum is 31.

The square root of 44728321 is about 6687.9235192995. The cubic root of 44728321 is about 354.9720827084.

The spelling of 44728321 in words is "forty-four million, seven hundred twenty-eight thousand, three hundred twenty-one".