326564460 has 120 divisors (see below), whose sum is σ = 1046485440. Its totient is φ = 85211136.

The previous prime is 326564453. The next prime is 326564461. The reversal of 326564460 is 64465623.

326564460 is a `hidden beast` number, since 3 + 2 + 6 + 5 + 644 + 6 + 0 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (326564461) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 73996 + ... + 78284.

It is an arithmetic number, because the mean of its divisors is an integer number (8720712).

Almost surely, 2^326564460 is an apocalyptic number.

326564460 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 326564460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (523242720).

326564460 is an abundant number, since it is smaller than the sum of its proper divisors (719920980).

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

326564460 is a wasteful number, since it uses less digits than its factorization.

326564460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4357 (or 4346 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 36.

The square root of 326564460 is about 18071.0945988338. The cubic root of 326564460 is about 688.6358682122.

The spelling of 326564460 in words is "three hundred twenty-six million, five hundred sixty-four thousand, four hundred sixty".