312343420 has 24 divisors (see below), whose sum is σ = 656326944. Its totient is φ = 124860096.

The previous prime is 312343411. The next prime is 312343439. The reversal of 312343420 is 24343213.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 312343391 and 312343400.

It is a congruent number.

It is an unprimeable number.

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, 37257 + ... + 44863.

It is an arithmetic number, because the mean of its divisors is an integer number (27346956).

Almost surely, 2^312343420 is an apocalyptic number.

It is an amenable number.

312343420 is an abundant number, since it is smaller than the sum of its proper divisors (343983524).

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

312343420 is a wasteful number, since it uses less digits than its factorization.

312343420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9669 (or 9667 counting only the distinct ones).

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

The square root of 312343420 is about 17673.2402235696. The cubic root of 312343420 is about 678.4910456109.

Adding to 312343420 its reverse (24343213), we get a palindrome (336686633).

The spelling of 312343420 in words is "three hundred twelve million, three hundred forty-three thousand, four hundred twenty".