318828813 has 32 divisors (see below), whose sum is σ = 452390400. Its totient is φ = 199421376.

The previous prime is 318828791. The next prime is 318828817.

It is a happy number.

318828813 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 318828813 - 2¹⁸ = 318566669 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (318828817) 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 31 ways as a sum of consecutive naturals, for example, 483478 + ... + 484136.

It is an arithmetic number, because the mean of its divisors is an integer number (14137200).

Almost surely, 2^318828813 is an apocalyptic number.

It is an amenable number.

318828813 is a deficient number, since it is larger than the sum of its proper divisors (133561587).

318828813 is a wasteful number, since it uses less digits than its factorization.

318828813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 841.

The product of its digits is 73728, while the sum is 42.

The square root of 318828813 is about 17855.7781404228. The cubic root of 318828813 is about 683.1548995674.

The spelling of 318828813 in words is "three hundred eighteen million, eight hundred twenty-eight thousand, eight hundred thirteen".