2440444420 has 12 divisors (see below), whose sum is σ = 5124933324. Its totient is φ = 976177760.

The previous prime is 2440444393. The next prime is 2440444421. The reversal of 2440444420 is 244440442.

It can be written as a sum of positive squares in 2 ways, for example, as 1794877956 + 645566464 = 42366^2 + 25408^2 .

It is not an unprimeable number, because it can be changed into a prime (2440444421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61011091 + ... + 61011130.

It is an arithmetic number, because the mean of its divisors is an integer number (427077777).

Almost surely, 2^2440444420 is an apocalyptic number.

2440444420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2440444420 is an abundant number, since it is smaller than the sum of its proper divisors (2684488904).

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

2440444420 is a wasteful number, since it uses less digits than its factorization.

2440444420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122022230 (or 122022228 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 28.

The square root of 2440444420 is about 49400.8544460518. The cubic root of 2440444420 is about 1346.3448303172.

Adding to 2440444420 its reverse (244440442), we get a palindrome (2684884862).

The spelling of 2440444420 in words is "two billion, four hundred forty million, four hundred forty-four thousand, four hundred twenty".