1313838 has 24 divisors (see below), whose sum is σ = 2909088. Its totient is φ = 428352.

The previous prime is 1313827. The next prime is 1313839. The reversal of 1313838 is 8383131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313839) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 70 + ... + 1622.

It is an arithmetic number, because the mean of its divisors is an integer number (121212).

2^1313838 is an apocalyptic number.

1313838 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1313838 is an abundant number, since it is smaller than the sum of its proper divisors (1595250).

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

1313838 is a wasteful number, since it uses less digits than its factorization.

1313838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1608 (or 1605 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 1313838 is about 1146.2277260649. The cubic root of 1313838 is about 109.5251709196.

Adding to 1313838 its reverse (8383131), we get a palindrome (9696969).

It can be divided in two parts, 131 and 3838, that added together give a square (3969 = 63²).

The spelling of 1313838 in words is "one million, three hundred thirteen thousand, eight hundred thirty-eight".