1315704838 has 16 divisors (see below), whose sum is σ = 2293724160. Its totient is φ = 554315976.

The previous prime is 1315704823. The next prime is 1315704839. The reversal of 1315704838 is 8384075131.

It is a self number, because there is not a number n which added to its sum of digits gives 1315704838.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1315704839) by changing a digit.

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, 795606 + ... + 797257.

It is an arithmetic number, because the mean of its divisors is an integer number (143357760).

Almost surely, 2^1315704838 is an apocalyptic number.

1315704838 is a deficient number, since it is larger than the sum of its proper divisors (978019322).

1315704838 is a wasteful number, since it uses less digits than its factorization.

1315704838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1592931.

The product of its (nonzero) digits is 80640, while the sum is 40.

The square root of 1315704838 is about 36272.6458643425. The cubic root of 1315704838 is about 1095.7702129617.

Adding to 1315704838 its reverse (8384075131), we get a palindrome (9699779969).

The spelling of 1315704838 in words is "one billion, three hundred fifteen million, seven hundred four thousand, eight hundred thirty-eight".