44442420 has 144 divisors (see below), whose sum is σ = 144825408. Its totient is φ = 10096640.

The previous prime is 44442383. The next prime is 44442421. The reversal of 44442420 is 2424444.

It is a super-3 number, since 3×44442420³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44442421) 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 47 ways as a sum of consecutive naturals, for example, 190624 + ... + 190856.

It is an arithmetic number, because the mean of its divisors is an integer number (1005732).

Almost surely, 2^44442420 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 44442420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72412704).

44442420 is an abundant number, since it is smaller than the sum of its proper divisors (100382988).

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

44442420 is a wasteful number, since it uses less digits than its factorization.

44442420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290 (or 271 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 24.

The square root of 44442420 is about 6666.5148316043. The cubic root of 44442420 is about 354.2141447461.

Adding to 44442420 its reverse (2424444), we get a palindrome (46866864).

It can be divided in two parts, 444424 and 20, that added together give a palindrome (444444).

The spelling of 44442420 in words is "forty-four million, four hundred forty-two thousand, four hundred twenty".