312233216 has 36 divisors (see below), whose sum is σ = 624709764. Its totient is φ = 155750400.

The previous prime is 312233179. The next prime is 312233219. The reversal of 312233216 is 612332213.

312233216 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 145926400 + 166306816 = 12080^2 + 12896^2 .

It is a junction number, because it is equal to n+sod(n) for n = 312233191 and 312233200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312233219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 132206 + ... + 134546.

It is an arithmetic number, because the mean of its divisors is an integer number (17353049).

Almost surely, 2^312233216 is an apocalyptic number.

It is an amenable number.

312233216 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

312233216 is an equidigital number, since it uses as much as digits as its factorization.

312233216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2878 (or 2864 counting only the distinct ones).

The product of its digits is 1296, while the sum is 23.

The square root of 312233216 is about 17670.1221274783. The cubic root of 312233216 is about 678.4112389855.

Adding to 312233216 its reverse (612332213), we get a palindrome (924565429).

The spelling of 312233216 in words is "three hundred twelve million, two hundred thirty-three thousand, two hundred sixteen".