1324680720 has 160 divisors (see below), whose sum is σ = 4510854144. Its totient is φ = 318912000.

The previous prime is 1324680719. The next prime is 1324680733. The reversal of 1324680720 is 270864231.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 396979 + ... + 400301.

Almost surely, 2^1324680720 is an apocalyptic number.

1324680720 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 1324680720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2255427072).

1324680720 is an abundant number, since it is smaller than the sum of its proper divisors (3186173424).

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

1324680720 is a wasteful number, since it uses less digits than its factorization.

1324680720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3501 (or 3495 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 1324680720 is about 36396.1635340869. The cubic root of 1324680720 is about 1098.2563891766.

The spelling of 1324680720 in words is "one billion, three hundred twenty-four million, six hundred eighty thousand, seven hundred twenty".