302230042 has 4 divisors (see below), whose sum is σ = 453345066. Its totient is φ = 151115020.

The previous prime is 302230039. The next prime is 302230043. The reversal of 302230042 is 240032203.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 240032203 = 7351 ⋅32653.

It can be written as a sum of positive squares in only one way, i.e., 262148481 + 40081561 = 16191^2 + 6331^2 .

It is a junction number, because it is equal to n+sod(n) for n = 302229998 and 302230025.

It is not an unprimeable number, because it can be changed into a prime (302230043) by changing a digit.

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 as a sum of consecutive naturals, namely, 75557509 + ... + 75557512.

Almost surely, 2^302230042 is an apocalyptic number.

302230042 is a deficient number, since it is larger than the sum of its proper divisors (151115024).

302230042 is a wasteful number, since it uses less digits than its factorization.

302230042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151115023.

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 302230042 is about 17384.7646518439. The cubic root of 302230042 is about 671.0875942396.

Adding to 302230042 its reverse (240032203), we get a palindrome (542262245).

The spelling of 302230042 in words is "three hundred two million, two hundred thirty thousand, forty-two".