315944140240 has 160 divisors (see below), whose sum is σ = 801004982400. Its totient is φ = 115491594240.

The previous prime is 315944140231. The next prime is 315944140243. The reversal of 315944140240 is 42041449513.

It is a self number, because there is not a number n which added to its sum of digits gives 315944140240.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315944140243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5517999 + ... + 5574961.

It is an arithmetic number, because the mean of its divisors is an integer number (5006281140).

Almost surely, 2^315944140240 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 315944140240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (400502491200).

315944140240 is an abundant number, since it is smaller than the sum of its proper divisors (485060842160).

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

315944140240 is a wasteful number, since it uses less digits than its factorization.

315944140240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57125 (or 57119 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 37.

Adding to 315944140240 its reverse (42041449513), we get a palindrome (357985589753).

The spelling of 315944140240 in words is "three hundred fifteen billion, nine hundred forty-four million, one hundred forty thousand, two hundred forty".