44544220 has 24 divisors (see below), whose sum is σ = 106906464. Its totient is φ = 15272256.

The previous prime is 44544209. The next prime is 44544223. The reversal of 44544220 is 2244544.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44544223) 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, 158947 + ... + 159226.

It is an arithmetic number, because the mean of its divisors is an integer number (4454436).

Almost surely, 2^44544220 is an apocalyptic number.

It is an amenable number.

44544220 is an abundant number, since it is smaller than the sum of its proper divisors (62362244).

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

44544220 is a wasteful number, since it uses less digits than its factorization.

44544220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318189 (or 318187 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 25.

The square root of 44544220 is about 6674.1456382072. The cubic root of 44544220 is about 354.4843933256.

Adding to 44544220 its reverse (2244544), we get a palindrome (46788764).

The spelling of 44544220 in words is "forty-four million, five hundred forty-four thousand, two hundred twenty".