44316640 has 48 divisors (see below), whose sum is σ = 108319680. Its totient is φ = 17113600.

The previous prime is 44316631. The next prime is 44316647. The reversal of 44316640 is 4661344.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 44316599 and 44316608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44316647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136 + ... + 9415.

It is an arithmetic number, because the mean of its divisors is an integer number (2256660).

Almost surely, 2^44316640 is an apocalyptic number.

44316640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 44316640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54159840).

44316640 is an abundant number, since it is smaller than the sum of its proper divisors (64003040).

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

44316640 is a wasteful number, since it uses less digits than its factorization.

44316640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9595 (or 9587 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 44316640 is about 6657.0744325116. The cubic root of 44316640 is about 353.8796658678.

Adding to 44316640 its reverse (4661344), we get a palindrome (48977984).

The spelling of 44316640 in words is "forty-four million, three hundred sixteen thousand, six hundred forty".