216302342 has 4 divisors (see below), whose sum is σ = 324453516. Its totient is φ = 108151170.

The previous prime is 216302323. The next prime is 216302363. The reversal of 216302342 is 243203612.

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 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, 54075584 + ... + 54075587.

It is an arithmetic number, because the mean of its divisors is an integer number (81113379).

Almost surely, 2^216302342 is an apocalyptic number.

216302342 is a deficient number, since it is larger than the sum of its proper divisors (108151174).

216302342 is a wasteful number, since it uses less digits than its factorization.

216302342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108151173.

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

The square root of 216302342 is about 14707.2207435667. The cubic root of 216302342 is about 600.2798157812.

Adding to 216302342 its reverse (243203612), we get a palindrome (459505954).

The spelling of 216302342 in words is "two hundred sixteen million, three hundred two thousand, three hundred forty-two".