326963520 has 448 divisors, whose sum is σ = 1290401280. Its totient is φ = 77414400.

The previous prime is 326963503. The next prime is 326963543. The reversal of 326963520 is 25369623.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

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, 4605085 + ... + 4605155.

It is an arithmetic number, because the mean of its divisors is an integer number (2880360).

Almost surely, 2^326963520 is an apocalyptic number.

326963520 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 326963520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (645200640).

326963520 is an abundant number, since it is smaller than the sum of its proper divisors (963437760).

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

326963520 is a wasteful number, since it uses less digits than its factorization.

326963520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151 (or 135 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 36.

The square root of 326963520 is about 18082.1326175869. The cubic root of 326963520 is about 688.9162571314.

The spelling of 326963520 in words is "three hundred twenty-six million, nine hundred sixty-three thousand, five hundred twenty".