312343530 has 16 divisors (see below), whose sum is σ = 749624544. Its totient is φ = 83291600.

The previous prime is 312343517. The next prime is 312343531. The reversal of 312343530 is 35343213.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 312343530.

It is not an unprimeable number, because it can be changed into a prime (312343531) 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 7 ways as a sum of consecutive naturals, for example, 5205696 + ... + 5205755.

It is an arithmetic number, because the mean of its divisors is an integer number (46851534).

Almost surely, 2^312343530 is an apocalyptic number.

312343530 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

312343530 is an abundant number, since it is smaller than the sum of its proper divisors (437281014).

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

312343530 is a wasteful number, since it uses less digits than its factorization.

312343530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10411461.

The product of its (nonzero) digits is 3240, while the sum is 24.

The square root of 312343530 is about 17673.2433356190. The cubic root of 312343530 is about 678.4911252604.

Adding to 312343530 its reverse (35343213), we get a palindrome (347686743).

The spelling of 312343530 in words is "three hundred twelve million, three hundred forty-three thousand, five hundred thirty".