323423540 has 48 divisors (see below), whose sum is σ = 744012864. Its totient is φ = 117120000.

The previous prime is 323423533. The next prime is 323423587. The reversal of 323423540 is 45324323.

It is a super-2 number, since 2×323423540² = 209205572452263200, which contains 22 as substring.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 52292 + ... + 58148.

It is an arithmetic number, because the mean of its divisors is an integer number (15500268).

Almost surely, 2^323423540 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 323423540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (372006432).

323423540 is an abundant number, since it is smaller than the sum of its proper divisors (420589324).

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

323423540 is a wasteful number, since it uses less digits than its factorization.

323423540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6128 (or 6126 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 26.

The square root of 323423540 is about 17983.9800934054. The cubic root of 323423540 is about 686.4209691659.

Adding to 323423540 its reverse (45324323), we get a palindrome (368747863).

The spelling of 323423540 in words is "three hundred twenty-three million, four hundred twenty-three thousand, five hundred forty".