323421240 has 32 divisors (see below), whose sum is σ = 970264080. Its totient is φ = 86245632.

The previous prime is 323421229. The next prime is 323421257. The reversal of 323421240 is 42124323.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1347469 + ... + 1347708.

Almost surely, 2^323421240 is an apocalyptic number.

323421240 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

323421240 is an abundant number, since it is smaller than the sum of its proper divisors (646842840).

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

323421240 is a wasteful number, since it uses less digits than its factorization.

323421240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2695191 (or 2695187 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 323421240 is about 17983.9161474913. The cubic root of 323421240 is about 686.4193420199.

Adding to 323421240 its reverse (42124323), we get a palindrome (365545563).

The spelling of 323421240 in words is "three hundred twenty-three million, four hundred twenty-one thousand, two hundred forty".