312242 has 8 divisors (see below), whose sum is σ = 535296. Its totient is φ = 133812.

The previous prime is 312241. The next prime is 312251. The reversal of 312242 is 242213.

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

It is a Harshad number since it is a multiple of its sum of digits (14), and also a Moran number because the ratio is a prime number: 22303 = 312242 / (3 + 1 + 2 + 2 + 4 + 2).

It is not an unprimeable number, because it can be changed into a prime (312241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11138 + ... + 11165.

It is an arithmetic number, because the mean of its divisors is an integer number (66912).

2³¹²²⁴² is an apocalyptic number.

312242 is a deficient number, since it is larger than the sum of its proper divisors (223054).

312242 is a wasteful number, since it uses less digits than its factorization.

312242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22312.

The product of its digits is 96, while the sum is 14.

The square root of 312242 is about 558.7861845107. The cubic root of 312242 is about 67.8417600799.

Adding to 312242 its reverse (242213), we get a palindrome (554455).

The spelling of 312242 in words is "three hundred twelve thousand, two hundred forty-two", and thus it is an iban number.