312443230 has 16 divisors (see below), whose sum is σ = 613525104. Its totient is φ = 113615680.

The previous prime is 312443213. The next prime is 312443233. The reversal of 312443230 is 32344213.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312443233) 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, 1420087 + ... + 1420306.

It is an arithmetic number, because the mean of its divisors is an integer number (38345319).

Almost surely, 2^312443230 is an apocalyptic number.

312443230 is a deficient number, since it is larger than the sum of its proper divisors (301081874).

312443230 is a wasteful number, since it uses less digits than its factorization.

312443230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2840411.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 312443230 is about 17676.0637586540. The cubic root of 312443230 is about 678.5633089966.

Adding to 312443230 its reverse (32344213), we get a palindrome (344787443).

The spelling of 312443230 in words is "three hundred twelve million, four hundred forty-three thousand, two hundred thirty".