1324743680 has 132 divisors (see below), whose sum is σ = 3443332392. Its totient is φ = 488816640.

The previous prime is 1324743643. The next prime is 1324743689. The reversal of 1324743680 is 863474231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1324743689) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 864515 + ... + 866045.

Almost surely, 2^1324743680 is an apocalyptic number.

1324743680 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 1324743680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1721666196).

1324743680 is an abundant number, since it is smaller than the sum of its proper divisors (2118588712).

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

1324743680 is a wasteful number, since it uses less digits than its factorization.

1324743680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1582 (or 1551 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 38.

The square root of 1324743680 is about 36397.0284501359. The cubic root of 1324743680 is about 1098.2737883697.

The spelling of 1324743680 in words is "one billion, three hundred twenty-four million, seven hundred forty-three thousand, six hundred eighty".