312440420426 has 16 divisors (see below), whose sum is σ = 495883089600. Its totient is φ = 147231260928.

The previous prime is 312440420423. The next prime is 312440420431. The reversal of 312440420426 is 624024044213.

It is a junction number, because it is equal to n+sod(n) for n = 312440420392 and 312440420401.

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

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21293486 + ... + 21308153.

It is an arithmetic number, because the mean of its divisors is an integer number (30992693100).

Almost surely, 2^312440420426 is an apocalyptic number.

312440420426 is a deficient number, since it is larger than the sum of its proper divisors (183442669174).

312440420426 is a wasteful number, since it uses less digits than its factorization.

312440420426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42601853.

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 312440420426 its reverse (624024044213), we get a palindrome (936464464639).

The spelling of 312440420426 in words is "three hundred twelve billion, four hundred forty million, four hundred twenty thousand, four hundred twenty-six".