306313642 has 8 divisors (see below), whose sum is σ = 462824676. Its totient is φ = 152038752.

The previous prime is 306313607. The next prime is 306313643. The reversal of 306313642 is 246313603.

It can be written as a sum of positive squares in 2 ways, for example, as 274266721 + 32046921 = 16561^2 + 5661^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 306313642.

It is not an unprimeable number, because it can be changed into a prime (306313643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 558693 + ... + 559240.

Almost surely, 2^306313642 is an apocalyptic number.

306313642 is a deficient number, since it is larger than the sum of its proper divisors (156511034).

306313642 is a wasteful number, since it uses less digits than its factorization.

306313642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1118072.

The product of its (nonzero) digits is 7776, while the sum is 28.

The square root of 306313642 is about 17501.8182483992. The cubic root of 306313642 is about 674.0965632824.

The spelling of 306313642 in words is "three hundred six million, three hundred thirteen thousand, six hundred forty-two".