312412422 has 64 divisors (see below), whose sum is σ = 731566080. Its totient is φ = 87095424.

The previous prime is 312412403. The next prime is 312412433. The reversal of 312412422 is 224214213.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 651979 + ... + 652457.

It is an arithmetic number, because the mean of its divisors is an integer number (11430720).

Almost surely, 2^312412422 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 312412422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (365783040).

312412422 is an abundant number, since it is smaller than the sum of its proper divisors (419153658).

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

312412422 is a wasteful number, since it uses less digits than its factorization.

312412422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 837.

The product of its digits is 768, while the sum is 21.

The square root of 312412422 is about 17675.1922761819. The cubic root of 312412422 is about 678.5410053549.

Adding to 312412422 its reverse (224214213), we get a palindrome (536626635).

The spelling of 312412422 in words is "three hundred twelve million, four hundred twelve thousand, four hundred twenty-two".