326327820 has 192 divisors, whose sum is σ = 1144765440. Its totient is φ = 67617792.

The previous prime is 326327819. The next prime is 326327867. The reversal of 326327820 is 28723623.

It is a super-2 number, since 2×326327820² = 212979692211904800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 321634 + ... + 322646.

It is an arithmetic number, because the mean of its divisors is an integer number (5962320).

Almost surely, 2^326327820 is an apocalyptic number.

326327820 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 326327820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (572382720).

326327820 is an abundant number, since it is smaller than the sum of its proper divisors (818437620).

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

326327820 is a wasteful number, since it uses less digits than its factorization.

326327820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1104 (or 1102 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 33.

The square root of 326327820 is about 18064.5459394915. The cubic root of 326327820 is about 688.4694914938.

The spelling of 326327820 in words is "three hundred twenty-six million, three hundred twenty-seven thousand, eight hundred twenty".