312440420424 has 64 divisors (see below), whose sum is σ = 852203255040. Its totient is φ = 94668580160.

The previous prime is 312440420423. The next prime is 312440420431. The reversal of 312440420424 is 424024044213.

It is a junction number, because it is equal to n+sod(n) for n = 312440420391 and 312440420400.

It is not an unprimeable number, because it can be changed into a prime (312440420423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2560039 + ... + 2679305.

It is an arithmetic number, because the mean of its divisors is an integer number (13315675860).

Almost surely, 2^312440420424 is an apocalyptic number.

It is an amenable number.

312440420424 is an abundant number, since it is smaller than the sum of its proper divisors (539762834616).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

312440420424 is a wasteful number, since it uses less digits than its factorization.

312440420424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129210 (or 129206 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 30.

Adding to 312440420424 its reverse (424024044213), we get a palindrome (736464464637).

The spelling of 312440420424 in words is "three hundred twelve billion, four hundred forty million, four hundred twenty thousand, four hundred twenty-four".