1324022728 has 24 divisors (see below), whose sum is σ = 2887856550. Its totient is φ = 567438144.

The previous prime is 1324022701. The next prime is 1324022729. The reversal of 1324022728 is 8272204231.

It can be written as a sum of positive squares in only one way, i.e., 1267502404 + 56520324 = 35602^2 + 7518^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1324022728.

It is not an unprimeable number, because it can be changed into a prime (1324022729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1688413 + ... + 1689196.

Almost surely, 2^1324022728 is an apocalyptic number.

It is an amenable number.

1324022728 is an abundant number, since it is smaller than the sum of its proper divisors (1563833822).

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

1324022728 is a wasteful number, since it uses less digits than its factorization.

1324022728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3377629 (or 3377618 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 1324022728 is about 36387.1231069454. The cubic root of 1324022728 is about 1098.0745180309.

Adding to 1324022728 its reverse (8272204231), we get a palindrome (9596226959).

The spelling of 1324022728 in words is "one billion, three hundred twenty-four million, twenty-two thousand, seven hundred twenty-eight".