1313830 has 24 divisors (see below), whose sum is σ = 2722608. Its totient is φ = 447168.

The previous prime is 1313827. The next prime is 1313839. The reversal of 1313830 is 383131.

It is a super-2 number, since 2×1313830² = 3452298537800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1313798 and 1313807.

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 pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9522 + ... + 9658.

It is an arithmetic number, because the mean of its divisors is an integer number (113442).

2^1313830 is an apocalyptic number.

1313830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1313830 is an abundant number, since it is smaller than the sum of its proper divisors (1408778).

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

1313830 is an equidigital number, since it uses as much as digits as its factorization.

1313830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288 (or 151 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 1313830 is about 1146.2242363517. The cubic root of 1313830 is about 109.5249486184.

Adding to 1313830 its reverse (383131), we get a palindrome (1696961).

The spelling of 1313830 in words is "one million, three hundred thirteen thousand, eight hundred thirty".