44421020 has 48 divisors (see below), whose sum is σ = 107260608. Its totient is φ = 15137280.

The previous prime is 44421007. The next prime is 44421043. The reversal of 44421020 is 2012444.

It is a self number, because there is not a number n which added to its sum of digits gives 44421020.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24464 + ... + 26216.

It is an arithmetic number, because the mean of its divisors is an integer number (2234596).

Almost surely, 2^44421020 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 44421020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53630304).

44421020 is an abundant number, since it is smaller than the sum of its proper divisors (62839588).

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

44421020 is a wasteful number, since it uses less digits than its factorization.

44421020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1950 (or 1948 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 44421020 is about 6664.9096017876. The cubic root of 44421020 is about 354.1572816583.

Adding to 44421020 its reverse (2012444), we get a palindrome (46433464).

The spelling of 44421020 in words is "forty-four million, four hundred twenty-one thousand, twenty".