4544442440 has 16 divisors (see below), whose sum is σ = 10224995580. Its totient is φ = 1817776960.

The previous prime is 4544442437. The next prime is 4544442443. The reversal of 4544442440 is 442444454.

It is an interprime number because it is at equal distance from previous prime (4544442437) and next prime (4544442443).

It can be written as a sum of positive squares in 2 ways, for example, as 4267486276 + 276956164 = 65326^2 + 16642^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 4544442440.

It is not an unprimeable number, because it can be changed into a prime (4544442443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56805491 + ... + 56805570.

Almost surely, 2^4544442440 is an apocalyptic number.

4544442440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4544442440 is an abundant number, since it is smaller than the sum of its proper divisors (5680553140).

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

4544442440 is a wasteful number, since it uses less digits than its factorization.

4544442440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113611072 (or 113611068 counting only the distinct ones).

The product of its (nonzero) digits is 163840, while the sum is 35.

The square root of 4544442440 is about 67412.4798535108. The cubic root of 4544442440 is about 1656.3808557535.

Adding to 4544442440 its reverse (442444454), we get a palindrome (4986886894).

The spelling of 4544442440 in words is "four billion, five hundred forty-four million, four hundred forty-two thousand, four hundred forty".