44501380 has 144 divisors (see below), whose sum is σ = 122266368. Its totient is φ = 13305600.

The previous prime is 44501329. The next prime is 44501381. The reversal of 44501380 is 8310544.

It is not an unprimeable number, because it can be changed into a prime (44501381) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 626745 + ... + 626815.

It is an arithmetic number, because the mean of its divisors is an integer number (849072).

Almost surely, 2^44501380 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 44501380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61133184).

44501380 is an abundant number, since it is smaller than the sum of its proper divisors (77764988).

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

44501380 is a wasteful number, since it uses less digits than its factorization.

44501380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146 (or 133 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 44501380 is about 6670.9354666343. The cubic root of 44501380 is about 354.3707161573.

The spelling of 44501380 in words is "forty-four million, five hundred one thousand, three hundred eighty".