315222442 has 8 divisors (see below), whose sum is σ = 473060736. Its totient is φ = 157535532.

The previous prime is 315222437. The next prime is 315222469. The reversal of 315222442 is 244222513.

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, 32488 + ... + 41059.

It is an arithmetic number, because the mean of its divisors is an integer number (59132592).

Almost surely, 2^315222442 is an apocalyptic number.

315222442 is a deficient number, since it is larger than the sum of its proper divisors (157838294).

315222442 is a wasteful number, since it uses less digits than its factorization.

315222442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75692.

The product of its digits is 3840, while the sum is 25.

The square root of 315222442 is about 17754.5048368013. The cubic root of 315222442 is about 680.5693343185.

Adding to 315222442 its reverse (244222513), we get a palindrome (559444955).

The spelling of 315222442 in words is "three hundred fifteen million, two hundred twenty-two thousand, four hundred forty-two".