312023244 has 144 divisors (see below), whose sum is σ = 867104000. Its totient is φ = 86562432.

The previous prime is 312023233. The next prime is 312023269. The reversal of 312023244 is 442320213.

It is a self number, because there is not a number n which added to its sum of digits gives 312023244.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1567857 + ... + 1568055.

Almost surely, 2^312023244 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 312023244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (433552000).

312023244 is an abundant number, since it is smaller than the sum of its proper divisors (555080756).

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

312023244 is a wasteful number, since it uses less digits than its factorization.

312023244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284 (or 259 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 312023244 is about 17664.1796865861. The cubic root of 312023244 is about 678.2591312014.

Adding to 312023244 its reverse (442320213), we get a palindrome (754343457).

The spelling of 312023244 in words is "three hundred twelve million, twenty-three thousand, two hundred forty-four".