4044244440 has 64 divisors (see below), whose sum is σ = 12244082400. Its totient is φ = 1068567552.

The previous prime is 4044244423. The next prime is 4044244459. The reversal of 4044244440 is 444424404.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 4044244398 and 4044244407.

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, 141517 + ... + 167676.

Almost surely, 2^4044244440 is an apocalyptic number.

4044244440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4044244440 is an abundant number, since it is smaller than the sum of its proper divisors (8199837960).

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

4044244440 is a wasteful number, since it uses less digits than its factorization.

4044244440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309316 (or 309312 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 30.

The square root of 4044244440 is about 63594.3742794911. The cubic root of 4044244440 is about 1593.2324099790.

Adding to 4044244440 its reverse (444424404), we get a palindrome (4488668844).

The spelling of 4044244440 in words is "four billion, forty-four million, two hundred forty-four thousand, four hundred forty".