1324521628 has 12 divisors (see below), whose sum is σ = 2322365472. Its totient is φ = 660988640.

The previous prime is 1324521607. The next prime is 1324521661. The reversal of 1324521628 is 8261254231.

It is a junction number, because it is equal to n+sod(n) for n = 1324521593 and 1324521602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 315700 + ... + 319867.

It is an arithmetic number, because the mean of its divisors is an integer number (193530456).

Almost surely, 2^1324521628 is an apocalyptic number.

It is an amenable number.

1324521628 is a deficient number, since it is larger than the sum of its proper divisors (997843844).

1324521628 is a wasteful number, since it uses less digits than its factorization.

1324521628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636092 (or 636090 counting only the distinct ones).

The product of its digits is 23040, while the sum is 34.

The square root of 1324521628 is about 36393.9779084397. The cubic root of 1324521628 is about 1098.2124211477.

Adding to 1324521628 its reverse (8261254231), we get a palindrome (9585775859).

The spelling of 1324521628 in words is "one billion, three hundred twenty-four million, five hundred twenty-one thousand, six hundred twenty-eight".