1224304312 has 64 divisors (see below), whose sum is σ = 2867639040. Its totient is φ = 476064000.

The previous prime is 1224304307. The next prime is 1224304327. The reversal of 1224304312 is 2134034221.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 368563 + ... + 371869.

It is an arithmetic number, because the mean of its divisors is an integer number (44806860).

Almost surely, 2^1224304312 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 1224304312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1433819520).

1224304312 is an abundant number, since it is smaller than the sum of its proper divisors (1643334728).

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

1224304312 is a wasteful number, since it uses less digits than its factorization.

1224304312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3932 (or 3928 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 1224304312 is about 34990.0601885736. The cubic root of 1224304312 is about 1069.7848905222.

Adding to 1224304312 its reverse (2134034221), we get a palindrome (3358338533).

The spelling of 1224304312 in words is "one billion, two hundred twenty-four million, three hundred four thousand, three hundred twelve".