1323522442 has 32 divisors (see below), whose sum is σ = 2278710144. Its totient is φ = 575417920.

The previous prime is 1323522439. The next prime is 1323522443. The reversal of 1323522442 is 2442253231.

It is a self number, because there is not a number n which added to its sum of digits gives 1323522442.

It is not an unprimeable number, because it can be changed into a prime (1323522443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50418 + ... + 72034.

It is an arithmetic number, because the mean of its divisors is an integer number (71209692).

Almost surely, 2^1323522442 is an apocalyptic number.

1323522442 is a deficient number, since it is larger than the sum of its proper divisors (955187702).

1323522442 is a wasteful number, since it uses less digits than its factorization.

1323522442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21675 (or 21653 counting only the distinct ones).

The product of its digits is 11520, while the sum is 28.

The square root of 1323522442 is about 36380.2479650703. The cubic root of 1323522442 is about 1097.9361970130.

Adding to 1323522442 its reverse (2442253231), we get a palindrome (3765775673).

The spelling of 1323522442 in words is "one billion, three hundred twenty-three million, five hundred twenty-two thousand, four hundred forty-two".