1224404312 has 8 divisors (see below), whose sum is σ = 2295758100. Its totient is φ = 612202152.

The previous prime is 1224404309. The next prime is 1224404353. The reversal of 1224404312 is 2134044221.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76525262 + ... + 76525277.

Almost surely, 2^1224404312 is an apocalyptic number.

It is an amenable number.

1224404312 is a deficient number, since it is larger than the sum of its proper divisors (1071353788).

1224404312 is a wasteful number, since it uses less digits than its factorization.

1224404312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153050545 (or 153050541 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 1224404312 is about 34991.4891366458. The cubic root of 1224404312 is about 1069.8140160633.

Adding to 1224404312 its reverse (2134044221), we get a palindrome (3358448533).

The spelling of 1224404312 in words is "one billion, two hundred twenty-four million, four hundred four thousand, three hundred twelve".