324680640 has 224 divisors, whose sum is σ = 1079942976. Its totient is φ = 82575360.

The previous prime is 324680623. The next prime is 324680647. The reversal of 324680640 is 46086423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (324680647) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2873224 + ... + 2873336.

It is an arithmetic number, because the mean of its divisors is an integer number (4821174).

Almost surely, 2^324680640 is an apocalyptic number.

324680640 is a gapful number since it is divisible by the number (30) 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 324680640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (539971488).

324680640 is an abundant number, since it is smaller than the sum of its proper divisors (755262336).

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

324680640 is a wasteful number, since it uses less digits than its factorization.

324680640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247 (or 237 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 33.

The square root of 324680640 is about 18018.8967475814. The cubic root of 324680640 is about 687.3091587102.

The spelling of 324680640 in words is "three hundred twenty-four million, six hundred eighty thousand, six hundred forty".