44445380 has 48 divisors (see below), whose sum is σ = 107364096. Its totient is φ = 15139200.

The previous prime is 44445377. The next prime is 44445419. The reversal of 44445380 is 8354444.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22430 + ... + 24330.

It is an arithmetic number, because the mean of its divisors is an integer number (2236752).

Almost surely, 2^44445380 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 44445380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53682048).

44445380 is an abundant number, since it is smaller than the sum of its proper divisors (62918716).

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

44445380 is a wasteful number, since it uses less digits than its factorization.

44445380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2084 (or 2082 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 32.

The square root of 44445380 is about 6666.7368329641. The cubic root of 44445380 is about 354.2220084838. Note that the first 3 decimals are identical.

The spelling of 44445380 in words is "forty-four million, four hundred forty-five thousand, three hundred eighty".