312050239640 has 32 divisors (see below), whose sum is σ = 702325648080. Its totient is φ = 124782298752.

The previous prime is 312050239609. The next prime is 312050239643. The reversal of 312050239640 is 46932050213.

It is a self number, because there is not a number n which added to its sum of digits gives 312050239640.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312050239643) 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, 1047227 + ... + 1311786.

Almost surely, 2^312050239640 is an apocalyptic number.

It is an amenable number.

312050239640 is an abundant number, since it is smaller than the sum of its proper divisors (390275408440).

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

312050239640 is a wasteful number, since it uses less digits than its factorization.

312050239640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2362331 (or 2362327 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 35.

Adding to 312050239640 its reverse (46932050213), we get a palindrome (358982289853).

The spelling of 312050239640 in words is "three hundred twelve billion, fifty million, two hundred thirty-nine thousand, six hundred forty".