44180730 has 72 divisors (see below), whose sum is σ = 126293076. Its totient is φ = 10707840.

The previous prime is 44180729. The next prime is 44180753. The reversal of 44180730 is 3708144.

It can be written as a sum of positive squares in 2 ways, for example, as 43996689 + 184041 = 6633^2 + 429^2 .

It is a junction number, because it is equal to n+sod(n) for n = 44180694 and 44180703.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 8862 + ... + 12918.

Almost surely, 2^44180730 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 44180730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63146538).

44180730 is an abundant number, since it is smaller than the sum of its proper divisors (82112346).

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

44180730 is a wasteful number, since it uses less digits than its factorization.

44180730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4092 (or 4078 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 44180730 is about 6646.8586565384. The cubic root of 44180730 is about 353.5175367597.

Adding to 44180730 its reverse (3708144), we get a palindrome (47888874).

The spelling of 44180730 in words is "forty-four million, one hundred eighty thousand, seven hundred thirty".