323115940 has 96 divisors (see below), whose sum is σ = 828334080. Its totient is φ = 103348224.

The previous prime is 323115917. The next prime is 323115953. The reversal of 323115940 is 49511323.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 323115899 and 323115908.

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 31 ways as a sum of consecutive naturals, for example, 301726 + ... + 302794.

It is an arithmetic number, because the mean of its divisors is an integer number (8628480).

Almost surely, 2^323115940 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 323115940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (414167040).

323115940 is an abundant number, since it is smaller than the sum of its proper divisors (505218140).

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

323115940 is a wasteful number, since it uses less digits than its factorization.

323115940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1229 (or 1227 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 323115940 is about 17975.4260032968. The cubic root of 323115940 is about 686.2032875637.

The spelling of 323115940 in words is "three hundred twenty-three million, one hundred fifteen thousand, nine hundred forty".