44422220 has 12 divisors (see below), whose sum is σ = 93286704. Its totient is φ = 17768880.

The previous prime is 44422219. The next prime is 44422249. The reversal of 44422220 is 2222444.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 2221111 = 44422220 / (4 + 4 + 4 + 2 + 2 + 2 + 2 + 0).

It is a nialpdrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 44422192 and 44422201.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1110536 + ... + 1110575.

It is an arithmetic number, because the mean of its divisors is an integer number (7773892).

Almost surely, 2^44422220 is an apocalyptic number.

It is an amenable number.

44422220 is an abundant number, since it is smaller than the sum of its proper divisors (48864484).

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

44422220 is a wasteful number, since it uses less digits than its factorization.

44422220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2221120 (or 2221118 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 44422220 is about 6664.9996249062. Note that the first 3 decimals coincide. The cubic root of 44422220 is about 354.1604707259.

Adding to 44422220 its reverse (2222444), we get a palindrome (46644664).

The spelling of 44422220 in words is "forty-four million, four hundred twenty-two thousand, two hundred twenty".