312443242 has 8 divisors (see below), whose sum is σ = 468792000. Its totient is φ = 156179244.

The previous prime is 312443237. The next prime is 312443279. The reversal of 312443242 is 242344213.

It is a happy number.

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, 10992 + ... + 27307.

It is an arithmetic number, because the mean of its divisors is an integer number (58599000).

Almost surely, 2^312443242 is an apocalyptic number.

312443242 is a deficient number, since it is larger than the sum of its proper divisors (156348758).

312443242 is a wasteful number, since it uses less digits than its factorization.

312443242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42380.

The product of its digits is 4608, while the sum is 25.

The square root of 312443242 is about 17676.0640980960. The cubic root of 312443242 is about 678.5633176838.

Adding to 312443242 its reverse (242344213), we get a palindrome (554787455).

The spelling of 312443242 in words is "three hundred twelve million, four hundred forty-three thousand, two hundred forty-two".