312774 has 32 divisors (see below), whose sum is σ = 781056. Its totient is φ = 81120.

The previous prime is 312773. The next prime is 312779. The reversal of 312774 is 477213.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312773) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124 + ... + 800.

It is an arithmetic number, because the mean of its divisors is an integer number (24408).

2³¹²⁷⁷⁴ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 312774, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (390528).

312774 is an abundant number, since it is smaller than the sum of its proper divisors (468282).

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

312774 is a wasteful number, since it uses less digits than its factorization.

312774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700.

The product of its digits is 1176, while the sum is 24.

The square root of 312774 is about 559.2620137288. The cubic root of 312774 is about 67.8802679658.

Adding to 312774 its reverse (477213), we get a palindrome (789987).

The spelling of 312774 in words is "three hundred twelve thousand, seven hundred seventy-four", and thus it is an iban number.