1323542340 has 72 divisors (see below), whose sum is σ = 4017843648. Its totient is φ = 352672320.

The previous prime is 1323542317. The next prime is 1323542347. The reversal of 1323542340 is 432453231.

1323542340 is a `hidden beast` number, since 1 + 3 + 235 + 423 + 4 + 0 = 666.

1323542340 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (1323542347) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 358705 + ... + 362375.

It is an arithmetic number, because the mean of its divisors is an integer number (55803384).

Almost surely, 2^1323542340 is an apocalyptic number.

1323542340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1323542340 is an abundant number, since it is smaller than the sum of its proper divisors (2694301308).

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

1323542340 is a wasteful number, since it uses less digits than its factorization.

1323542340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5689 (or 5684 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

The square root of 1323542340 is about 36380.5214366150. The cubic root of 1323542340 is about 1097.9416991549.

Adding to 1323542340 its reverse (432453231), we get a palindrome (1755995571).

The spelling of 1323542340 in words is "one billion, three hundred twenty-three million, five hundred forty-two thousand, three hundred forty".