302312242 has 4 divisors (see below), whose sum is σ = 453468366. Its totient is φ = 151156120.

The previous prime is 302312239. The next prime is 302312261. The reversal of 302312242 is 242213203.

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., 286320241 + 15992001 = 16921^2 + 3999^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75578059 + ... + 75578062.

Almost surely, 2^302312242 is an apocalyptic number.

302312242 is a deficient number, since it is larger than the sum of its proper divisors (151156124).

302312242 is a wasteful number, since it uses less digits than its factorization.

302312242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151156123.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 302312242 is about 17387.1286301103. The cubic root of 302312242 is about 671.1484291360.

Adding to 302312242 its reverse (242213203), we get a palindrome (544525445).

The spelling of 302312242 in words is "three hundred two million, three hundred twelve thousand, two hundred forty-two".