312412340 has 12 divisors (see below), whose sum is σ = 656065956. Its totient is φ = 124964928.

The previous prime is 312412313. The next prime is 312412363. The reversal of 312412340 is 43214213.

It can be written as a sum of positive squares in 2 ways, for example, as 58583716 + 253828624 = 7654^2 + 15932^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 15620617 = 312412340 / (3 + 1 + 2 + 4 + 1 + 2 + 3 + 4 + 0).

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 7810289 + ... + 7810328.

It is an arithmetic number, because the mean of its divisors is an integer number (54672163).

Almost surely, 2^312412340 is an apocalyptic number.

It is an amenable number.

312412340 is an abundant number, since it is smaller than the sum of its proper divisors (343653616).

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

312412340 is a wasteful number, since it uses less digits than its factorization.

312412340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15620626 (or 15620624 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 312412340 is about 17675.1899565464. The cubic root of 312412340 is about 678.5409459886.

Adding to 312412340 its reverse (43214213), we get a palindrome (355626553).

The spelling of 312412340 in words is "three hundred twelve million, four hundred twelve thousand, three hundred forty".