1393040068 has 24 divisors (see below), whose sum is σ = 2792451200. Its totient is φ = 595651968.

The previous prime is 1393040053. The next prime is 1393040071. The reversal of 1393040068 is 8600403931.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44373 + ... + 68956.

Almost surely, 2^1393040068 is an apocalyptic number.

It is an amenable number.

1393040068 is an abundant number, since it is smaller than the sum of its proper divisors (1399411132).

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

1393040068 is a wasteful number, since it uses less digits than its factorization.

1393040068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113779 (or 113777 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 1393040068 is about 37323.4519839738. The cubic root of 1393040068 is about 1116.8320522943.

Adding to 1393040068 its reverse (8600403931), we get a palindrome (9993443999).

The spelling of 1393040068 in words is "one billion, three hundred ninety-three million, forty thousand, sixty-eight".