323779680 has 480 divisors, whose sum is σ = 1352381184. Its totient is φ = 71414784.

The previous prime is 323779657. The next prime is 323779697. The reversal of 323779680 is 86977323.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (480).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 3900919 + ... + 3901001.

Almost surely, 2^323779680 is an apocalyptic number.

323779680 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 323779680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (676190592).

323779680 is an abundant number, since it is smaller than the sum of its proper divisors (1028601504).

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

323779680 is a wasteful number, since it uses less digits than its factorization.

323779680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160 (or 143 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 45.

The square root of 323779680 is about 17993.8789592461. The cubic root of 323779680 is about 686.6728290940.

The spelling of 323779680 in words is "three hundred twenty-three million, seven hundred seventy-nine thousand, six hundred eighty".