324480673440 has 720 divisors, whose sum is σ = 1453241157984. Its totient is φ = 67423104000.

The previous prime is 324480673423. The next prime is 324480673471. The reversal of 324480673440 is 44376084423.

324480673440 is a `hidden beast` number, since 3 + 244 + 8 + 0 + 67 + 344 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (720).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 6962215 + ... + 7008665.

Almost surely, 2^324480673440 is an apocalyptic number.

324480673440 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 324480673440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (726620578992).

324480673440 is an abundant number, since it is smaller than the sum of its proper divisors (1128760484544).

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

324480673440 is a wasteful number, since it uses less digits than its factorization.

324480673440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46503 (or 46479 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 45.

The spelling of 324480673440 in words is "three hundred twenty-four billion, four hundred eighty million, six hundred seventy-three thousand, four hundred forty".