8103393940 has 48 divisors (see below), whose sum is σ = 17362699200. Its totient is φ = 3175898112.

The previous prime is 8103393937. The next prime is 8103393941. The reversal of 8103393940 is 493933018.

It is a junction number, because it is equal to n+sod(n) for n = 8103393893 and 8103393902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8103393941) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 351076 + ... + 373444.

It is an arithmetic number, because the mean of its divisors is an integer number (361722900).

Almost surely, 2^8103393940 is an apocalyptic number.

It is an amenable number.

8103393940 is an abundant number, since it is smaller than the sum of its proper divisors (9259305260).

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

8103393940 is a wasteful number, since it uses less digits than its factorization.

8103393940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22744 (or 22742 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 40.

The square root of 8103393940 is about 90018.8532475281. The cubic root of 8103393940 is about 2008.5793067912.

The spelling of 8103393940 in words is "eight billion, one hundred three million, three hundred ninety-three thousand, nine hundred forty".