323533540 has 48 divisors (see below), whose sum is σ = 742452480. Its totient is φ = 117447680.

The previous prime is 323533531. The next prime is 323533547. The reversal of 323533540 is 45335323.

It is a junction number, because it is equal to n+sod(n) for n = 323533499 and 323533508.

It is not an unprimeable number, because it can be changed into a prime (323533547) 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, 203589 + ... + 205171.

It is an arithmetic number, because the mean of its divisors is an integer number (15467760).

Almost surely, 2^323533540 is an apocalyptic number.

It is an amenable number.

323533540 is an abundant number, since it is smaller than the sum of its proper divisors (418918940).

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

323533540 is a wasteful number, since it uses less digits than its factorization.

323533540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2532 (or 2530 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 28.

The square root of 323533540 is about 17987.0381108175. The cubic root of 323533540 is about 686.4987801874.

Adding to 323533540 its reverse (45335323), we get a palindrome (368868863).

The spelling of 323533540 in words is "three hundred twenty-three million, five hundred thirty-three thousand, five hundred forty".