312744 has 32 divisors (see below), whose sum is σ = 796320. Its totient is φ = 102336.

The previous prime is 312743. The next prime is 312757. The reversal of 312744 is 447213.

It is a self number, because there is not a number n which added to its sum of digits gives 312744.

It is not an unprimeable number, because it can be changed into a prime (312743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1914 + ... + 2070.

It is an arithmetic number, because the mean of its divisors is an integer number (24885).

2³¹²⁷⁴⁴ is an apocalyptic number.

It is an amenable number.

312744 is an abundant number, since it is smaller than the sum of its proper divisors (483576).

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

312744 is a wasteful number, since it uses less digits than its factorization.

312744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249 (or 245 counting only the distinct ones).

The product of its digits is 672, while the sum is 21.

The square root of 312744 is about 559.2351920257. The cubic root of 312744 is about 67.8780976307.

Adding to 312744 its reverse (447213), we get a palindrome (759957).

It can be divided in two parts, 31 and 2744, that added together give a triangular number (2775 = T₇₄).

The spelling of 312744 in words is "three hundred twelve thousand, seven hundred forty-four", and thus it is an iban number.