44640224 has 48 divisors (see below), whose sum is σ = 91300608. Its totient is φ = 21470592.

The previous prime is 44640223. The next prime is 44640229. The reversal of 44640224 is 42204644.

It is a junction number, because it is equal to n+sod(n) for n = 44640193 and 44640202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44640223) 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, 100547 + ... + 100989.

It is an arithmetic number, because the mean of its divisors is an integer number (1902096).

Almost surely, 2^44640224 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 44640224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45650304).

44640224 is an abundant number, since it is smaller than the sum of its proper divisors (46660384).

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

44640224 is a wasteful number, since it uses less digits than its factorization.

44640224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567 (or 559 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 26.

The square root of 44640224 is about 6681.3339985365. Note that the first 3 decimals coincide. The cubic root of 44640224 is about 354.7388782682.

Adding to 44640224 its reverse (42204644), we get a palindrome (86844868).

The spelling of 44640224 in words is "forty-four million, six hundred forty thousand, two hundred twenty-four".