1393496738 has 16 divisors (see below), whose sum is σ = 2166813504. Its totient is φ = 671577840.

The previous prime is 1393496729. The next prime is 1393496759. The reversal of 1393496738 is 8376943931.

It is a self number, because there is not a number n which added to its sum of digits gives 1393496738.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 80078 + ... + 95913.

It is an arithmetic number, because the mean of its divisors is an integer number (135425844).

Almost surely, 2^1393496738 is an apocalyptic number.

1393496738 is a deficient number, since it is larger than the sum of its proper divisors (773316766).

1393496738 is a wasteful number, since it uses less digits than its factorization.

1393496738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176137.

The product of its digits is 2939328, while the sum is 53.

The square root of 1393496738 is about 37329.5692179805. The cubic root of 1393496738 is about 1116.9540798853.

The spelling of 1393496738 in words is "one billion, three hundred ninety-three million, four hundred ninety-six thousand, seven hundred thirty-eight".