44240420 has 24 divisors (see below), whose sum is σ = 106177344. Its totient is φ = 15168096.

The previous prime is 44240407. The next prime is 44240423. The reversal of 44240420 is 2404244.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 44240392 and 44240401.

It is not an unprimeable number, because it can be changed into a prime (44240423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157862 + ... + 158141.

It is an arithmetic number, because the mean of its divisors is an integer number (4424056).

Almost surely, 2^44240420 is an apocalyptic number.

It is an amenable number.

44240420 is an abundant number, since it is smaller than the sum of its proper divisors (61936924).

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

44240420 is a wasteful number, since it uses less digits than its factorization.

44240420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316019 (or 316017 counting only the distinct ones).

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

The square root of 44240420 is about 6651.3472319523. The cubic root of 44240420 is about 353.6766707374.

Adding to 44240420 its reverse (2404244), we get a palindrome (46644664).

It can be divided in two parts, 4 and 4240420, that added together give a palindrome (4240424).

The spelling of 44240420 in words is "forty-four million, two hundred forty thousand, four hundred twenty".