323973680 has 40 divisors (see below), whose sum is σ = 758322000. Its totient is φ = 128715008.

The previous prime is 323973673. The next prime is 323973697. The reversal of 323973680 is 86379323.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1670 + ... + 25509.

It is an arithmetic number, because the mean of its divisors is an integer number (18958050).

Almost surely, 2^323973680 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 323973680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (379161000).

323973680 is an abundant number, since it is smaller than the sum of its proper divisors (434348320).

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

323973680 is a wasteful number, since it uses less digits than its factorization.

323973680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27341 (or 27335 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 41.

The square root of 323973680 is about 17999.2688740404. The cubic root of 323973680 is about 686.8099469550.

The spelling of 323973680 in words is "three hundred twenty-three million, nine hundred seventy-three thousand, six hundred eighty".