312530042 has 32 divisors (see below), whose sum is σ = 530712000. Its totient is φ = 136729600.

The previous prime is 312530039. The next prime is 312530051. The reversal of 312530042 is 240035213.

It is a happy number.

312530042 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 312529996 and 312530023.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 285917 + ... + 287007.

It is an arithmetic number, because the mean of its divisors is an integer number (16584750).

Almost surely, 2^312530042 is an apocalyptic number.

312530042 is a deficient number, since it is larger than the sum of its proper divisors (218181958).

312530042 is a wasteful number, since it uses less digits than its factorization.

312530042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1582.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 312530042 is about 17678.5192253197. The cubic root of 312530042 is about 678.6261491943.

Adding to 312530042 its reverse (240035213), we get a palindrome (552565255).

The spelling of 312530042 in words is "three hundred twelve million, five hundred thirty thousand, forty-two".