44578820 has 108 divisors (see below), whose sum is σ = 112446180. Its totient is φ = 14826240.

The previous prime is 44578819. The next prime is 44578823. The reversal of 44578820 is 2887544.

It can be written as a sum of positive squares in 6 ways, for example, as 5541316 + 39037504 = 2354^2 + 6248^2 .

It is not an unprimeable number, because it can be changed into a prime (44578823) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 408926 + ... + 409034.

Almost surely, 2^44578820 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 44578820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56223090).

44578820 is an abundant number, since it is smaller than the sum of its proper divisors (67867360).

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

44578820 is a wasteful number, since it uses less digits than its factorization.

44578820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166 (or 140 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 38.

The square root of 44578820 is about 6676.7372271192. The cubic root of 44578820 is about 354.5761522242.

The spelling of 44578820 in words is "forty-four million, five hundred seventy-eight thousand, eight hundred twenty".