306212342 has 4 divisors (see below), whose sum is σ = 459318516. Its totient is φ = 153106170.

The previous prime is 306212339. The next prime is 306212351. The reversal of 306212342 is 243212603.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76553084 + ... + 76553087.

It is an arithmetic number, because the mean of its divisors is an integer number (114829629).

Almost surely, 2^306212342 is an apocalyptic number.

306212342 is a deficient number, since it is larger than the sum of its proper divisors (153106174).

306212342 is a wasteful number, since it uses less digits than its factorization.

306212342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153106173.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 306212342 is about 17498.9240240650. The cubic root of 306212342 is about 674.0222456534.

Adding to 306212342 its reverse (243212603), we get a palindrome (549424945).

The spelling of 306212342 in words is "three hundred six million, two hundred twelve thousand, three hundred forty-two".