323240042 has 4 divisors (see below), whose sum is σ = 484860066. Its totient is φ = 161620020.

The previous prime is 323240041. The next prime is 323240051. The reversal of 323240042 is 240042323.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 290395681 + 32844361 = 17041^2 + 5731^2 .

It is a junction number, because it is equal to n+sod(n) for n = 323239996 and 323240023.

It is not an unprimeable number, because it can be changed into a prime (323240041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80810009 + ... + 80810012.

Almost surely, 2^323240042 is an apocalyptic number.

323240042 is a deficient number, since it is larger than the sum of its proper divisors (161620024).

323240042 is a wasteful number, since it uses less digits than its factorization.

323240042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161620023.

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 323240042 is about 17978.8776624126. The cubic root of 323240042 is about 686.2911283762.

Adding to 323240042 its reverse (240042323), we get a palindrome (563282365).

The spelling of 323240042 in words is "three hundred twenty-three million, two hundred forty thousand, forty-two".