44538620 has 48 divisors (see below), whose sum is σ = 108272640. Its totient is φ = 15073344.

The previous prime is 44538619. The next prime is 44538629. The reversal of 44538620 is 2683544.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44538629) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9047 + ... + 13073.

It is an arithmetic number, because the mean of its divisors is an integer number (2255680).

Almost surely, 2^44538620 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 44538620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54136320).

44538620 is an abundant number, since it is smaller than the sum of its proper divisors (63734020).

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

44538620 is a wasteful number, since it uses less digits than its factorization.

44538620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4122 (or 4120 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 44538620 is about 6673.7260956680. The cubic root of 44538620 is about 354.4695377072.

The spelling of 44538620 in words is "forty-four million, five hundred thirty-eight thousand, six hundred twenty".