323204413040 has 80 divisors (see below), whose sum is σ = 780388534080. Its totient is φ = 124337848320.

The previous prime is 323204413013. The next prime is 323204413087. The reversal of 323204413040 is 40314402323.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×323204413040² (a number of 24 digits) contains 22 as substring.

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, 325205 + ... + 867275.

It is an arithmetic number, because the mean of its divisors is an integer number (9754856676).

Almost surely, 2^323204413040 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 323204413040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (390194267040).

323204413040 is an abundant number, since it is smaller than the sum of its proper divisors (457184121040).

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

323204413040 is a wasteful number, since it uses less digits than its factorization.

323204413040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542370 (or 542364 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 323204413040 its reverse (40314402323), we get a palindrome (363518815363).

The spelling of 323204413040 in words is "three hundred twenty-three billion, two hundred four million, four hundred thirteen thousand, forty".