44144220 has 48 divisors (see below), whose sum is σ = 130112640. Its totient is φ = 11151936.

The previous prime is 44144207. The next prime is 44144227. The reversal of 44144220 is 2244144.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44144227) 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, 18222 + ... + 20501.

It is an arithmetic number, because the mean of its divisors is an integer number (2710680).

Almost surely, 2^44144220 is an apocalyptic number.

It is an amenable number.

44144220 is an abundant number, since it is smaller than the sum of its proper divisors (85968420).

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

44144220 is a wasteful number, since it uses less digits than its factorization.

44144220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38754 (or 38752 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 21.

The square root of 44144220 is about 6644.1116787724. Note that the first 3 decimals coincide. The cubic root of 44144220 is about 353.4201301737.

Adding to 44144220 its reverse (2244144), we get a palindrome (46388364).

The spelling of 44144220 in words is "forty-four million, one hundred forty-four thousand, two hundred twenty".