1264312 has 32 divisors (see below), whose sum is σ = 2747520. Its totient is φ = 534240.

The previous prime is 1264303. The next prime is 1264331. The reversal of 1264312 is 2134621.

It is a self number, because there is not a number n which added to its sum of digits gives 1264312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5887 + ... + 6097.

It is an arithmetic number, because the mean of its divisors is an integer number (85860).

2^1264312 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 1264312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1373760).

1264312 is an abundant number, since it is smaller than the sum of its proper divisors (1483208).

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

1264312 is a wasteful number, since it uses less digits than its factorization.

1264312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331 (or 327 counting only the distinct ones).

The product of its digits is 288, while the sum is 19.

The square root of 1264312 is about 1124.4162930161. The cubic root of 1264312 is about 108.1312989303.

Adding to 1264312 its reverse (2134621), we get a palindrome (3398933).

The spelling of 1264312 in words is "one million, two hundred sixty-four thousand, three hundred twelve".