326776320 has 240 divisors, whose sum is σ = 1219890672. Its totient is φ = 80363520.

The previous prime is 326776313. The next prime is 326776327. The reversal of 326776320 is 23677623.

326776320 is a `hidden beast` number, since 3 + 267 + 76 + 320 = 666.

It is an interprime number because it is at equal distance from previous prime (326776313) and next prime (326776327).

It is a tau number, because it is divible by the number of its divisors (240).

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 (326776327) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 298975 + ... + 300065.

Almost surely, 2^326776320 is an apocalyptic number.

326776320 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 326776320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (609945336).

326776320 is an abundant number, since it is smaller than the sum of its proper divisors (893114352).

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

326776320 is a wasteful number, since it uses less digits than its factorization.

326776320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1133 (or 1114 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 36.

The square root of 326776320 is about 18076.9554958793. The cubic root of 326776320 is about 688.7847544449.

The spelling of 326776320 in words is "three hundred twenty-six million, seven hundred seventy-six thousand, three hundred twenty".