318340736 has 128 divisors (see below), whose sum is σ = 763253760. Its totient is φ = 129392640.

The previous prime is 318340733. The next prime is 318340741. The reversal of 318340736 is 637043813.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (128).

It is a taxicab number since it can be written as a sum of two cubes in more than one way. Here 318340736 = 221³ + 675³ = 338³ + 654³.

It is a junction number, because it is equal to n+sod(n) for n = 318340696 and 318340705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (318340733) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2027570 + ... + 2027726.

It is an arithmetic number, because the mean of its divisors is an integer number (5962920).

Almost surely, 2^318340736 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 318340736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (381626880).

318340736 is an abundant number, since it is smaller than the sum of its proper divisors (444913024).

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

318340736 is a wasteful number, since it uses less digits than its factorization.

318340736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282 (or 270 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 35.

The square root of 318340736 is about 17842.1057053253. The cubic root of 318340736 is about 682.8061204636.

The spelling of 318340736 in words is "three hundred eighteen million, three hundred forty thousand, seven hundred thirty-six".