323021394 has 48 divisors (see below), whose sum is σ = 739327680. Its totient is φ = 101645280.

The previous prime is 323021393. The next prime is 323021417. The reversal of 323021394 is 493120323.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (323021393) 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, 104844 + ... + 107880.

It is an arithmetic number, because the mean of its divisors is an integer number (15402660).

Almost surely, 2^323021394 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 323021394, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (369663840).

323021394 is an abundant number, since it is smaller than the sum of its proper divisors (416306286).

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

323021394 is a wasteful number, since it uses less digits than its factorization.

323021394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3375 (or 3372 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The square root of 323021394 is about 17972.7959427575. The cubic root of 323021394 is about 686.1363517295.

The spelling of 323021394 in words is "three hundred twenty-three million, twenty-one thousand, three hundred ninety-four".