233530042 has 4 divisors (see below), whose sum is σ = 350295066. Its totient is φ = 116765020.

The previous prime is 233530039. The next prime is 233530043. The reversal of 233530042 is 240035332.

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., 220849321 + 12680721 = 14861^2 + 3561^2 .

It is a junction number, because it is equal to n+sod(n) for n = 233529995 and 233530022.

It is not an unprimeable number, because it can be changed into a prime (233530043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58382509 + ... + 58382512.

Almost surely, 2^233530042 is an apocalyptic number.

233530042 is a deficient number, since it is larger than the sum of its proper divisors (116765024).

233530042 is a wasteful number, since it uses less digits than its factorization.

233530042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116765023.

The product of its (nonzero) digits is 2160, while the sum is 22.

The square root of 233530042 is about 15281.6897625884. The cubic root of 233530042 is about 615.8112035268.

Adding to 233530042 its reverse (240035332), we get a palindrome (473565374).

The spelling of 233530042 in words is "two hundred thirty-three million, five hundred thirty thousand, forty-two".