315210442 has 8 divisors (see below), whose sum is σ = 472913856. Its totient is φ = 157572492.

The previous prime is 315210421. The next prime is 315210473. The reversal of 315210442 is 244012513.

315210442 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1698 + ... + 25165.

It is an arithmetic number, because the mean of its divisors is an integer number (59114232).

Almost surely, 2^315210442 is an apocalyptic number.

315210442 is a deficient number, since it is larger than the sum of its proper divisors (157703414).

315210442 is a wasteful number, since it uses less digits than its factorization.

315210442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32732.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 315210442 is about 17754.1668911836. The cubic root of 315210442 is about 680.5606981571.

Adding to 315210442 its reverse (244012513), we get a palindrome (559222955).

The spelling of 315210442 in words is "three hundred fifteen million, two hundred ten thousand, four hundred forty-two".