312140424 has 64 divisors (see below), whose sum is σ = 801239040. Its totient is φ = 101299520.

The previous prime is 312140401. The next prime is 312140431. The reversal of 312140424 is 424041213.

It is a self number, because there is not a number n which added to its sum of digits gives 312140424.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 140329 + ... + 142535.

It is an arithmetic number, because the mean of its divisors is an integer number (12519360).

Almost surely, 2^312140424 is an apocalyptic number.

It is an amenable number.

312140424 is an abundant number, since it is smaller than the sum of its proper divisors (489098616).

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

312140424 is a wasteful number, since it uses less digits than its factorization.

312140424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2370 (or 2366 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 312140424 is about 17667.4962572516. The cubic root of 312140424 is about 678.3440270751.

Adding to 312140424 its reverse (424041213), we get a palindrome (736181637).

The spelling of 312140424 in words is "three hundred twelve million, one hundred forty thousand, four hundred twenty-four".