1224000312 has 32 divisors (see below), whose sum is σ = 3111868800. Its totient is φ = 401084384.

The previous prime is 1224000277. The next prime is 1224000331. The reversal of 1224000312 is 2130004221.

It is a junction number, because it is equal to n+sod(n) for n = 1224000291 and 1224000300.

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, 430788 + ... + 433619.

It is an arithmetic number, because the mean of its divisors is an integer number (97245900).

Almost surely, 2^1224000312 is an apocalyptic number.

1224000312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1224000312 is an abundant number, since it is smaller than the sum of its proper divisors (1887868488).

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

1224000312 is a wasteful number, since it uses less digits than its factorization.

1224000312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 864475 (or 864471 counting only the distinct ones).

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

The square root of 1224000312 is about 34985.7158280347. The cubic root of 1224000312 is about 1069.6963391371.

Adding to 1224000312 its reverse (2130004221), we get a palindrome (3354004533).

The spelling of 1224000312 in words is "one billion, two hundred twenty-four million, three hundred twelve", and thus it is an aban number.