324009280 has 224 divisors, whose sum is σ = 971458560. Its totient is φ = 100362240.

The previous prime is 324009271. The next prime is 324009311. The reversal of 324009280 is 82900423.

It is a tau number, because it is divible by the number of its divisors (224).

It is a super-2 number, since 2×324009280² = 209964027052236800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

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, 978715 + ... + 979045.

Almost surely, 2^324009280 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 324009280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (485729280).

324009280 is an abundant number, since it is smaller than the sum of its proper divisors (647449280).

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

324009280 is a wasteful number, since it uses less digits than its factorization.

324009280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397 (or 387 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 324009280 is about 18000.2577759320. The cubic root of 324009280 is about 686.8351028448.

The spelling of 324009280 in words is "three hundred twenty-four million, nine thousand, two hundred eighty".