323231420 has 96 divisors (see below), whose sum is σ = 770273280. Its totient is φ = 113287680.

The previous prime is 323231417. The next prime is 323231431. The reversal of 323231420 is 24132323.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 323231392 and 323231401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 270344 + ... + 271536.

It is an arithmetic number, because the mean of its divisors is an integer number (8023680).

Almost surely, 2^323231420 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 323231420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (385136640).

323231420 is an abundant number, since it is smaller than the sum of its proper divisors (447041860).

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

323231420 is a wasteful number, since it uses less digits than its factorization.

323231420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1275 (or 1273 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 323231420 is about 17978.6378794390. The cubic root of 323231420 is about 686.2850263530.

Adding to 323231420 its reverse (24132323), we get a palindrome (347363743).

The spelling of 323231420 in words is "three hundred twenty-three million, two hundred thirty-one thousand, four hundred twenty".