312443334 has 72 divisors (see below), whose sum is σ = 816650640. Its totient is φ = 84558816.

The previous prime is 312443279. The next prime is 312443347. The reversal of 312443334 is 433344213.

It is a super-2 number, since 2×312443334² = 195241673922071112, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 312443298 and 312443307.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 42052 + ... + 48920.

It is an arithmetic number, because the mean of its divisors is an integer number (11342370).

Almost surely, 2^312443334 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 312443334, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (408325320).

312443334 is an abundant number, since it is smaller than the sum of its proper divisors (504207306).

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

312443334 is a wasteful number, since it uses less digits than its factorization.

312443334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6922 (or 6900 counting only the distinct ones).

The product of its digits is 10368, while the sum is 27.

The square root of 312443334 is about 17676.0667004852. The cubic root of 312443334 is about 678.5633842856.

Adding to 312443334 its reverse (433344213), we get a palindrome (745787547).

The spelling of 312443334 in words is "three hundred twelve million, four hundred forty-three thousand, three hundred thirty-four".