315310400240 has 80 divisors (see below), whose sum is σ = 816757724160. Its totient is φ = 112218773760.

The previous prime is 315310400221. The next prime is 315310400299. The reversal of 315310400240 is 42004013513.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3770420 + ... + 3853139.

It is an arithmetic number, because the mean of its divisors is an integer number (10209471552).

Almost surely, 2^315310400240 is an apocalyptic number.

It is an amenable number.

315310400240 is an abundant number, since it is smaller than the sum of its proper divisors (501447323920).

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

315310400240 is a wasteful number, since it uses less digits than its factorization.

315310400240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7623630 (or 7623624 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 315310400240 its reverse (42004013513), we get a palindrome (357314413753).

The spelling of 315310400240 in words is "three hundred fifteen billion, three hundred ten million, four hundred thousand, two hundred forty".