305074642 has 8 divisors (see below), whose sum is σ = 458970876. Its totient is φ = 152084352.

The previous prime is 305074633. The next prime is 305074667. The reversal of 305074642 is 246470503.

It can be written as a sum of positive squares in 2 ways, for example, as 298978681 + 6095961 = 17291^2 + 2469^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 225643 + ... + 226990.

Almost surely, 2^305074642 is an apocalyptic number.

305074642 is a deficient number, since it is larger than the sum of its proper divisors (153896234).

305074642 is a wasteful number, since it uses less digits than its factorization.

305074642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452972.

The product of its (nonzero) digits is 20160, while the sum is 31.

The square root of 305074642 is about 17466.3860600870. The cubic root of 305074642 is about 673.1864565976.

The spelling of 305074642 in words is "three hundred five million, seventy-four thousand, six hundred forty-two".