326065440 has 192 divisors, whose sum is σ = 1123476480. Its totient is φ = 79134720.

The previous prime is 326065429. The next prime is 326065477. The reversal of 326065440 is 44560623.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 326065398 and 326065407.

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, 252316 + ... + 253604.

It is an arithmetic number, because the mean of its divisors is an integer number (5851440).

Almost surely, 2^326065440 is an apocalyptic number.

326065440 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 326065440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (561738240).

326065440 is an abundant number, since it is smaller than the sum of its proper divisors (797411040).

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

326065440 is a wasteful number, since it uses less digits than its factorization.

326065440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1355 (or 1347 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

The square root of 326065440 is about 18057.2821875276. The cubic root of 326065440 is about 688.2849234514.

The spelling of 326065440 in words is "three hundred twenty-six million, sixty-five thousand, four hundred forty".