8238703640 has 16 divisors (see below), whose sum is σ = 18537083280. Its totient is φ = 3295481440.

The previous prime is 8238703607. The next prime is 8238703643. The reversal of 8238703640 is 463078328.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8238703643) 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, 102983756 + ... + 102983835.

It is an arithmetic number, because the mean of its divisors is an integer number (1158567705).

Almost surely, 2^8238703640 is an apocalyptic number.

It is an amenable number.

8238703640 is an abundant number, since it is smaller than the sum of its proper divisors (10298379640).

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

8238703640 is a wasteful number, since it uses less digits than its factorization.

8238703640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205967602 (or 205967598 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 41.

The square root of 8238703640 is about 90767.3049065576. The cubic root of 8238703640 is about 2019.6973405316.

The spelling of 8238703640 in words is "eight billion, two hundred thirty-eight million, seven hundred three thousand, six hundred forty".