323340040 has 64 divisors (see below), whose sum is σ = 751647600. Its totient is φ = 125088768.

The previous prime is 323339999. The next prime is 323340047. The reversal of 323340040 is 40043323.

It can be written as a sum of positive squares in 8 ways, for example, as 209149444 + 114190596 = 14462^2 + 10686^2 .

It is not an unprimeable number, because it can be changed into a prime (323340047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 291006 + ... + 292114.

Almost surely, 2^323340040 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 323340040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (375823800).

323340040 is an abundant number, since it is smaller than the sum of its proper divisors (428307560).

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

323340040 is a wasteful number, since it uses less digits than its factorization.

323340040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1354 (or 1350 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 19.

The square root of 323340040 is about 17981.6584329700. The cubic root of 323340040 is about 686.3618917467.

Adding to 323340040 its reverse (40043323), we get a palindrome (363383363).

The spelling of 323340040 in words is "three hundred twenty-three million, three hundred forty thousand, forty".