323020340 has 24 divisors (see below), whose sum is σ = 678680520. Its totient is φ = 129143808.

The previous prime is 323020307. The next prime is 323020351. The reversal of 323020340 is 43020323.

It can be written as a sum of positive squares in 4 ways, for example, as 3254416 + 319765924 = 1804^2 + 17882^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75704 + ... + 79856.

It is an arithmetic number, because the mean of its divisors is an integer number (28278355).

Almost surely, 2^323020340 is an apocalyptic number.

It is an amenable number.

323020340 is an abundant number, since it is smaller than the sum of its proper divisors (355660180).

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

323020340 is a wasteful number, since it uses less digits than its factorization.

323020340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8051 (or 8049 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 17.

The square root of 323020340 is about 17972.7666206402. The cubic root of 323020340 is about 686.1356054544.

Subtracting from 323020340 its sum of digits (17), we obtain a palindrome (323020323).

Adding to 323020340 its reverse (43020323), we get a palindrome (366040663).

The spelling of 323020340 in words is "three hundred twenty-three million, twenty thousand, three hundred forty".