315243400 has 48 divisors (see below), whose sum is σ = 739841040. Its totient is φ = 124910400.

The previous prime is 315243391. The next prime is 315243413. The reversal of 315243400 is 4342513.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14035 + ... + 28765.

It is an arithmetic number, because the mean of its divisors is an integer number (15413355).

Almost surely, 2^315243400 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 315243400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (369920520).

315243400 is an abundant number, since it is smaller than the sum of its proper divisors (424597640).

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

315243400 is a wasteful number, since it uses less digits than its factorization.

315243400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14854 (or 14845 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 315243400 is about 17755.0950433953. The cubic root of 315243400 is about 680.5844168487.

Adding to 315243400 its reverse (4342513), we get a palindrome (319585913).

The spelling of 315243400 in words is "three hundred fifteen million, two hundred forty-three thousand, four hundred".