44491328 has 56 divisors (see below), whose sum is σ = 103095552. Its totient is φ = 18653184.

The previous prime is 44491313. The next prime is 44491373. The reversal of 44491328 is 82319444.

It is a tau number, because it is divible by the number of its divisors (56).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20000 + ... + 22112.

It is an arithmetic number, because the mean of its divisors is an integer number (1840992).

Almost surely, 2^44491328 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 44491328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51547776).

44491328 is an abundant number, since it is smaller than the sum of its proper divisors (58604224).

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

44491328 is a wasteful number, since it uses less digits than its factorization.

44491328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2179 (or 2169 counting only the distinct ones).

The product of its digits is 27648, while the sum is 35.

The square root of 44491328 is about 6670.1820065123. The cubic root of 44491328 is about 354.3440323205.

The spelling of 44491328 in words is "forty-four million, four hundred ninety-one thousand, three hundred twenty-eight".