306421242 has 16 divisors (see below), whose sum is σ = 614188992. Its totient is φ = 101916000.

The previous prime is 306421237. The next prime is 306421253. The reversal of 306421242 is 242124603.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53134 + ... + 58617.

It is an arithmetic number, because the mean of its divisors is an integer number (38386812).

Almost surely, 2^306421242 is an apocalyptic number.

306421242 is an abundant number, since it is smaller than the sum of its proper divisors (307767750).

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

306421242 is a wasteful number, since it uses less digits than its factorization.

306421242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112213.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 306421242 is about 17504.8919448250. The cubic root of 306421242 is about 674.1754848941.

Adding to 306421242 its reverse (242124603), we get a palindrome (548545845).

The spelling of 306421242 in words is "three hundred six million, four hundred twenty-one thousand, two hundred forty-two".