1393816056 has 32 divisors (see below), whose sum is σ = 3486393600. Its totient is φ = 464358240.

The previous prime is 1393816051. The next prime is 1393816091. The reversal of 1393816056 is 6506183931.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1393815999 and 1393816017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1393816051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33825 + ... + 62703.

It is an arithmetic number, because the mean of its divisors is an integer number (108949800).

Almost surely, 2^1393816056 is an apocalyptic number.

It is an amenable number.

1393816056 is an abundant number, since it is smaller than the sum of its proper divisors (2092577544).

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

1393816056 is a wasteful number, since it uses less digits than its factorization.

1393816056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30899 (or 30895 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 42.

The square root of 1393816056 is about 37333.8459845754. The cubic root of 1393816056 is about 1117.0393895703.

Adding to 1393816056 its reverse (6506183931), we get a palindrome (7899999987).

The spelling of 1393816056 in words is "one billion, three hundred ninety-three million, eight hundred sixteen thousand, fifty-six".