324729216 has 256 divisors, whose sum is σ = 1133260800. Its totient is φ = 89579520.

The previous prime is 324729173. The next prime is 324729277. The reversal of 324729216 is 612927423.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 749736 + ... + 750168.

It is an arithmetic number, because the mean of its divisors is an integer number (4426800).

Almost surely, 2^324729216 is an apocalyptic number.

324729216 is a gapful number since it is divisible by the number (36) 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 324729216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (566630400).

324729216 is an abundant number, since it is smaller than the sum of its proper divisors (808531584).

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

324729216 is a wasteful number, since it uses less digits than its factorization.

324729216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494 (or 476 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 324729216 is about 18020.2446154318. The cubic root of 324729216 is about 687.3434334823.

The spelling of 324729216 in words is "three hundred twenty-four million, seven hundred twenty-nine thousand, two hundred sixteen".