1324413520 has 80 divisors (see below), whose sum is σ = 3176613648. Its totient is φ = 513146880.

The previous prime is 1324413479. The next prime is 1324413551. The reversal of 1324413520 is 253144231.

It can be written as a sum of positive squares in 8 ways, for example, as 16289296 + 1308124224 = 4036^2 + 36168^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 759850 + ... + 761590.

Almost surely, 2^1324413520 is an apocalyptic number.

1324413520 is a gapful number since it is divisible by the number (10) 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 1324413520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1588306824).

1324413520 is an abundant number, since it is smaller than the sum of its proper divisors (1852200128).

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

1324413520 is a wasteful number, since it uses less digits than its factorization.

1324413520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2048 (or 2042 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 1324413520 is about 36392.4926324098. The cubic root of 1324413520 is about 1098.1825414849.

Adding to 1324413520 its reverse (253144231), we get a palindrome (1577557751).

The spelling of 1324413520 in words is "one billion, three hundred twenty-four million, four hundred thirteen thousand, five hundred twenty".