1340212424 has 64 divisors (see below), whose sum is σ = 2685480000. Its totient is φ = 625252608.

The previous prime is 1340212421. The next prime is 1340212441. The reversal of 1340212424 is 4242120431.

It is a self number, because there is not a number n which added to its sum of digits gives 1340212424.

It is not an unprimeable number, because it can be changed into a prime (1340212421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4838174 + ... + 4838450.

It is an arithmetic number, because the mean of its divisors is an integer number (41960625).

Almost surely, 2^1340212424 is an apocalyptic number.

It is an amenable number.

1340212424 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

1340212424 is a wasteful number, since it uses less digits than its factorization.

1340212424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670 (or 666 counting only the distinct ones).

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

The square root of 1340212424 is about 36608.9118111970. The cubic root of 1340212424 is about 1102.5320250603.

Adding to 1340212424 its reverse (4242120431), we get a palindrome (5582332855).

The spelling of 1340212424 in words is "one billion, three hundred forty million, two hundred twelve thousand, four hundred twenty-four".