326545560 has 128 divisors (see below), whose sum is σ = 1187481600. Its totient is φ = 79159680.

The previous prime is 326545529. The next prime is 326545573. The reversal of 326545560 is 65545623.

It is a happy number.

326545560 is a `hidden beast` number, since 32 + 65 + 4 + 5 + 560 = 666.

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 31 ways as a sum of consecutive naturals, for example, 1864 + ... + 25623.

It is an arithmetic number, because the mean of its divisors is an integer number (9277200).

Almost surely, 2^326545560 is an apocalyptic number.

326545560 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 326545560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (593740800).

326545560 is an abundant number, since it is smaller than the sum of its proper divisors (860936040).

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

326545560 is a wasteful number, since it uses less digits than its factorization.

326545560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27518 (or 27508 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 36.

The square root of 326545560 is about 18070.5716567020. The cubic root of 326545560 is about 688.6225829647.

The spelling of 326545560 in words is "three hundred twenty-six million, five hundred forty-five thousand, five hundred sixty".