324080640 has 264 divisors, whose sum is σ = 1211545608. Its totient is φ = 79626240.

The previous prime is 324080633. The next prime is 324080657. The reversal of 324080640 is 46080423.

It can be written as a sum of positive squares in 4 ways, for example, as 1806336 + 322274304 = 1344^2 + 17952^2 .

It is a super-2 number, since 2×324080640² = 210056522445619200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 598770 + ... + 599310.

Almost surely, 2^324080640 is an apocalyptic number.

324080640 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 324080640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (605772804).

324080640 is an abundant number, since it is smaller than the sum of its proper divisors (887464968).

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

324080640 is a wasteful number, since it uses less digits than its factorization.

324080640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 585 (or 564 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 324080640 is about 18002.2398606396. The cubic root of 324080640 is about 686.8855221365.

The spelling of 324080640 in words is "three hundred twenty-four million, eighty thousand, six hundred forty".