326626560 has 288 divisors, whose sum is σ = 1249946880. Its totient is φ = 80289792.

The previous prime is 326626543. The next prime is 326626561. The reversal of 326626560 is 65626623.

326626560 is a `hidden beast` number, since 3 + 26 + 626 + 5 + 6 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (326626561) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 448917 + ... + 449643.

Almost surely, 2^326626560 is an apocalyptic number.

326626560 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 326626560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (624973440).

326626560 is an abundant number, since it is smaller than the sum of its proper divisors (923320320).

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

326626560 is a wasteful number, since it uses less digits than its factorization.

326626560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 770 (or 750 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

The square root of 326626560 is about 18072.8127307290. The cubic root of 326626560 is about 688.6795161309.

The spelling of 326626560 in words is "three hundred twenty-six million, six hundred twenty-six thousand, five hundred sixty".