1340212412 has 24 divisors (see below), whose sum is σ = 2924100480. Its totient is φ = 522160560.

The previous prime is 1340212411. The next prime is 1340212417. The reversal of 1340212412 is 2142120431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340212411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2175362 + ... + 2175977.

It is an arithmetic number, because the mean of its divisors is an integer number (121837520).

Almost surely, 2^1340212412 is an apocalyptic number.

It is an amenable number.

1340212412 is an abundant number, since it is smaller than the sum of its proper divisors (1583888068).

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

1340212412 is a wasteful number, since it uses less digits than its factorization.

1340212412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4351361 (or 4351359 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1340212412 is about 36608.9116473025. The cubic root of 1340212412 is about 1102.5320217697.

Adding to 1340212412 its reverse (2142120431), we get a palindrome (3482332843).

The spelling of 1340212412 in words is "one billion, three hundred forty million, two hundred twelve thousand, four hundred twelve".