44520420 has 144 divisors (see below), whose sum is σ = 152832960. Its totient is φ = 9628416.

The previous prime is 44520419. The next prime is 44520451. The reversal of 44520420 is 2402544.

44520420 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (21).

44520420 is strictly pandigital in base 9.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 55462 + ... + 56258.

It is an arithmetic number, because the mean of its divisors is an integer number (1061340).

Almost surely, 2^44520420 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 44520420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76416480).

44520420 is an abundant number, since it is smaller than the sum of its proper divisors (108312540).

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

44520420 is a wasteful number, since it uses less digits than its factorization.

44520420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 842 (or 833 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 21.

The square root of 44520420 is about 6672.3624002298. The cubic root of 44520420 is about 354.4212483460.

Adding to 44520420 its reverse (2402544), we get a palindrome (46922964).

The spelling of 44520420 in words is "forty-four million, five hundred twenty thousand, four hundred twenty".