8388244240 has 40 divisors (see below), whose sum is σ = 19601703000. Its totient is φ = 3338259456.

The previous prime is 8388244217. The next prime is 8388244247. The reversal of 8388244240 is 424428838.

It can be written as a sum of positive squares in 4 ways, for example, as 4203706896 + 4184537344 = 64836^2 + 64688^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (8388244247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 250365 + ... + 281884.

It is an arithmetic number, because the mean of its divisors is an integer number (490042575).

Almost surely, 2^8388244240 is an apocalyptic number.

8388244240 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8388244240 is an abundant number, since it is smaller than the sum of its proper divisors (11213458760).

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

8388244240 is a wasteful number, since it uses less digits than its factorization.

8388244240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532459 (or 532453 counting only the distinct ones).

The product of its (nonzero) digits is 393216, while the sum is 43.

The square root of 8388244240 is about 91587.3585163367. The cubic root of 8388244240 is about 2031.8439763333.

The spelling of 8388244240 in words is "eight billion, three hundred eighty-eight million, two hundred forty-four thousand, two hundred forty".