1393108868 has 12 divisors (see below), whose sum is σ = 2438214492. Its totient is φ = 696476160.

The previous prime is 1393108841. The next prime is 1393108897. The reversal of 1393108868 is 8688013931.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 622602304 + 770506564 = 24952^2 + 27758^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41996 + ... + 67452.

It is an arithmetic number, because the mean of its divisors is an integer number (203184541).

Almost surely, 2^1393108868 is an apocalyptic number.

It is an amenable number.

1393108868 is a deficient number, since it is larger than the sum of its proper divisors (1045105624).

1393108868 is a wasteful number, since it uses less digits than its factorization.

1393108868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39142 (or 39140 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 47.

The square root of 1393108868 is about 37324.3736451129. The cubic root of 1393108868 is about 1116.8504381689.

The spelling of 1393108868 in words is "one billion, three hundred ninety-three million, one hundred eight thousand, eight hundred sixty-eight".