323928730 has 8 divisors (see below), whose sum is σ = 583071732. Its totient is φ = 129571488.

The previous prime is 323928721. The next prime is 323928733. The reversal of 323928730 is 37829323.

It can be written as a sum of positive squares in 2 ways, for example, as 304188481 + 19740249 = 17441^2 + 4443^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 323928730.

It is not an unprimeable number, because it can be changed into a prime (323928733) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16196427 + ... + 16196446.

Almost surely, 2^323928730 is an apocalyptic number.

323928730 is a deficient number, since it is larger than the sum of its proper divisors (259143002).

323928730 is a wasteful number, since it uses less digits than its factorization.

323928730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32392880.

The product of its (nonzero) digits is 54432, while the sum is 37.

The square root of 323928730 is about 17998.0201688964. The cubic root of 323928730 is about 686.7781814784.

The spelling of 323928730 in words is "three hundred twenty-three million, nine hundred twenty-eight thousand, seven hundred thirty".