323143040 has 128 divisors (see below), whose sum is σ = 850655520. Its totient is φ = 116408320.

The previous prime is 323143019. The next prime is 323143061. The reversal of 323143040 is 40341323.

323143040 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (323143019) and next prime (323143061).

It is a tau number, because it is divible by the number of its divisors (128).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1386764 + ... + 1386996.

Almost surely, 2^323143040 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 323143040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (425327760).

323143040 is an abundant number, since it is smaller than the sum of its proper divisors (527512480).

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

323143040 is a wasteful number, since it uses less digits than its factorization.

323143040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460 (or 448 counting only the distinct ones).

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

The square root of 323143040 is about 17976.1797943835. The cubic root of 323143040 is about 686.2224711724. Note that the first 3 decimals are identical.

Adding to 323143040 its reverse (40341323), we get a palindrome (363484363).

The spelling of 323143040 in words is "three hundred twenty-three million, one hundred forty-three thousand, forty".