306142302 has 16 divisors (see below), whose sum is σ = 625312512. Its totient is φ = 99876120.

The previous prime is 306142297. The next prime is 306142303. The reversal of 306142302 is 203241603.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (306142303) 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 in 7 ways as a sum of consecutive naturals, for example, 542524 + ... + 543087.

It is an arithmetic number, because the mean of its divisors is an integer number (39082032).

Almost surely, 2^306142302 is an apocalyptic number.

306142302 is an abundant number, since it is smaller than the sum of its proper divisors (319170210).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

306142302 is a wasteful number, since it uses less digits than its factorization.

306142302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1085663.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 306142302 is about 17496.9226437108. The cubic root of 306142302 is about 673.9708519946.

Adding to 306142302 its reverse (203241603), we get a palindrome (509383905).

The spelling of 306142302 in words is "three hundred six million, one hundred forty-two thousand, three hundred two".