326976720 has 160 divisors (see below), whose sum is σ = 1165639680. Its totient is φ = 74273280.

The previous prime is 326976707. The next prime is 326976721. The reversal of 326976720 is 27679623.

326976720 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (326976721) 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, 320371 + ... + 321389.

It is an arithmetic number, because the mean of its divisors is an integer number (7285248).

Almost surely, 2^326976720 is an apocalyptic number.

326976720 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 326976720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (582819840).

326976720 is an abundant number, since it is smaller than the sum of its proper divisors (838662960).

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

326976720 is a wasteful number, since it uses less digits than its factorization.

326976720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1233 (or 1227 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 42.

The square root of 326976720 is about 18082.4976150973. The cubic root of 326976720 is about 688.9255278621.

The spelling of 326976720 in words is "three hundred twenty-six million, nine hundred seventy-six thousand, seven hundred twenty".