44442220 has 48 divisors (see below), whose sum is σ = 98638848. Its totient is φ = 16793280.

The previous prime is 44442193. The next prime is 44442227. The reversal of 44442220 is 2224444.

It is a super-3 number, since 3×44442220³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a nialpdrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 44442191 and 44442200.

It is not an unprimeable number, because it can be changed into a prime (44442227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25827 + ... + 27493.

It is an arithmetic number, because the mean of its divisors is an integer number (2054976).

Almost surely, 2^44442220 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 44442220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49319424).

44442220 is an abundant number, since it is smaller than the sum of its proper divisors (54196628).

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

44442220 is a wasteful number, since it uses less digits than its factorization.

44442220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1750 (or 1748 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

The square root of 44442220 is about 6666.4998312458. The cubic root of 44442220 is about 354.2136133999.

Adding to 44442220 its reverse (2224444), we get a palindrome (46666664).

The spelling of 44442220 in words is "forty-four million, four hundred forty-two thousand, two hundred twenty".