312041322 has 80 divisors (see below), whose sum is σ = 739126080. Its totient is φ = 98195328.

The previous prime is 312041309. The next prime is 312041333. The reversal of 312041322 is 223140213.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 312041295 and 312041304.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 308754 + ... + 309762.

It is an arithmetic number, because the mean of its divisors is an integer number (9239076).

Almost surely, 2^312041322 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 312041322, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (369563040).

312041322 is an abundant number, since it is smaller than the sum of its proper divisors (427084758).

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

312041322 is a wasteful number, since it uses less digits than its factorization.

312041322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1129 (or 1120 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 312041322 is about 17664.6913927190. The cubic root of 312041322 is about 678.2722299390.

Adding to 312041322 its reverse (223140213), we get a palindrome (535181535).

The spelling of 312041322 in words is "three hundred twelve million, forty-one thousand, three hundred twenty-two".