1224312 has 32 divisors (see below), whose sum is σ = 3091200. Its totient is φ = 404064.

The previous prime is 1224299. The next prime is 1224329. The reversal of 1224312 is 2134221.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 1224291 and 1224300.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3153 + ... + 3519.

It is an arithmetic number, because the mean of its divisors is an integer number (96600).

2^1224312 is an apocalyptic number.

1224312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1224312 is an abundant number, since it is smaller than the sum of its proper divisors (1866888).

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

1224312 is a wasteful number, since it uses less digits than its factorization.

1224312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515 (or 511 counting only the distinct ones).

The product of its digits is 96, while the sum is 15.

The square root of 1224312 is about 1106.4863306883. The cubic root of 1224312 is about 106.9787129750.

Adding to 1224312 its reverse (2134221), we get a palindrome (3358533).

Subtracting 1224312 from its reverse (2134221), we obtain a palindrome (909909).

The spelling of 1224312 in words is "one million, two hundred twenty-four thousand, three hundred twelve".