312423242 has 8 divisors (see below), whose sum is σ = 470580132. Its totient is φ = 155563200.

The previous prime is 312423193. The next prime is 312423257. The reversal of 312423242 is 242324213.

It can be written as a sum of positive squares in 2 ways, for example, as 278189041 + 34234201 = 16679^2 + 5851^2 .

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, 323609 + ... + 324572.

Almost surely, 2^312423242 is an apocalyptic number.

312423242 is a deficient number, since it is larger than the sum of its proper divisors (158156890).

312423242 is a wasteful number, since it uses less digits than its factorization.

312423242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648424.

The product of its digits is 2304, while the sum is 23.

The square root of 312423242 is about 17675.4983522389. The cubic root of 312423242 is about 678.5488387277.

Adding to 312423242 its reverse (242324213), we get a palindrome (554747455).

The spelling of 312423242 in words is "three hundred twelve million, four hundred twenty-three thousand, two hundred forty-two".