1320240412 has 12 divisors (see below), whose sum is σ = 2311991136. Its totient is φ = 659671520.

The previous prime is 1320240409. The next prime is 1320240419. The reversal of 1320240412 is 2140420231.

It is a self number, because there is not a number n which added to its sum of digits gives 1320240412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320240419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105508 + ... + 117355.

It is an arithmetic number, because the mean of its divisors is an integer number (192665928).

Almost surely, 2^1320240412 is an apocalyptic number.

It is an amenable number.

1320240412 is a deficient number, since it is larger than the sum of its proper divisors (991750724).

1320240412 is a wasteful number, since it uses less digits than its factorization.

1320240412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224348 (or 224346 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 1320240412 is about 36335.1126597951. The cubic root of 1320240412 is about 1097.0279030758.

Adding to 1320240412 its reverse (2140420231), we get a palindrome (3460660643).

The spelling of 1320240412 in words is "one billion, three hundred twenty million, two hundred forty thousand, four hundred twelve".