315616242 has 8 divisors (see below), whose sum is σ = 631232496. Its totient is φ = 105205412.

The previous prime is 315616199. The next prime is 315616283. The reversal of 315616242 is 242616513.

It is a sphenic number, since it is the product of 3 distinct primes.

315616242 is an admirable number.

It is a super-3 number, since 3×315616242³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26301348 + ... + 26301359.

It is an arithmetic number, because the mean of its divisors is an integer number (78904062).

Almost surely, 2^315616242 is an apocalyptic number.

315616242 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

315616242 is a wasteful number, since it uses less digits than its factorization.

315616242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52602712.

The product of its digits is 8640, while the sum is 30.

The square root of 315616242 is about 17765.5915184381. The cubic root of 315616242 is about 680.8526228159.

The spelling of 315616242 in words is "three hundred fifteen million, six hundred sixteen thousand, two hundred forty-two".