324071680 has 144 divisors (see below), whose sum is σ = 840402864. Its totient is φ = 119275520.

The previous prime is 324071639. The next prime is 324071729. The reversal of 324071680 is 86170423.

It can be written as a sum of positive squares in 8 ways, for example, as 24920064 + 299151616 = 4992^2 + 17296^2 .

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, 1153140 + ... + 1153420.

It is an arithmetic number, because the mean of its divisors is an integer number (5836131).

Almost surely, 2^324071680 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 324071680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (420201432).

324071680 is an abundant number, since it is smaller than the sum of its proper divisors (516331184).

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

324071680 is a wasteful number, since it uses less digits than its factorization.

324071680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372 (or 358 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 324071680 is about 18001.9910009976. The cubic root of 324071680 is about 686.8791918694.

The spelling of 324071680 in words is "three hundred twenty-four million, seventy-one thousand, six hundred eighty".