1316933838 has 24 divisors (see below), whose sum is σ = 3112753176. Its totient is φ = 399070800.

The previous prime is 1316933767. The next prime is 1316933857. The reversal of 1316933838 is 8383396131.

It is a junction number, because it is equal to n+sod(n) for n = 1316933793 and 1316933802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3325393 + ... + 3325788.

It is an arithmetic number, because the mean of its divisors is an integer number (129698049).

Almost surely, 2^1316933838 is an apocalyptic number.

1316933838 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1316933838 is an abundant number, since it is smaller than the sum of its proper divisors (1795819338).

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

1316933838 is a wasteful number, since it uses less digits than its factorization.

1316933838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6651200 (or 6651197 counting only the distinct ones).

The product of its digits is 279936, while the sum is 45.

The square root of 1316933838 is about 36289.5830507875. The cubic root of 1316933838 is about 1096.1112931321. Note that the first 3 decimals are identical.

It can be divided in two parts, 131693 and 3838, that added together give a palindrome (135531).

The spelling of 1316933838 in words is "one billion, three hundred sixteen million, nine hundred thirty-three thousand, eight hundred thirty-eight".