326947760 has 80 divisors (see below), whose sum is σ = 799609536. Its totient is φ = 124084224.

The previous prime is 326947727. The next prime is 326947771. The reversal of 326947760 is 67749623.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 251432 + ... + 252728.

Almost surely, 2^326947760 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 326947760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (399804768).

326947760 is an abundant number, since it is smaller than the sum of its proper divisors (472661776).

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

326947760 is a wasteful number, since it uses less digits than its factorization.

326947760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1470 (or 1464 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 44.

The square root of 326947760 is about 18081.6968230307. The cubic root of 326947760 is about 688.9051881140.

The spelling of 326947760 in words is "three hundred twenty-six million, nine hundred forty-seven thousand, seven hundred sixty".