1323275652 has 72 divisors (see below), whose sum is σ = 3521516544. Its totient is φ = 418150656.

The previous prime is 1323275633. The next prime is 1323275663. The reversal of 1323275652 is 2565723231.

1323275652 is a `hidden beast` number, since 1 + 323 + 275 + 65 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 86493 + ... + 100635.

It is an arithmetic number, because the mean of its divisors is an integer number (48909952).

Almost surely, 2^1323275652 is an apocalyptic number.

1323275652 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1323275652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1760758272).

1323275652 is an abundant number, since it is smaller than the sum of its proper divisors (2198240892).

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

1323275652 is a wasteful number, since it uses less digits than its factorization.

1323275652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14289 (or 14284 counting only the distinct ones).

The product of its digits is 75600, while the sum is 36.

The square root of 1323275652 is about 36376.8559938871. The cubic root of 1323275652 is about 1097.8679507159.

Adding to 1323275652 its reverse (2565723231), we get a palindrome (3888998883).

The spelling of 1323275652 in words is "one billion, three hundred twenty-three million, two hundred seventy-five thousand, six hundred fifty-two".