305405074 has 8 divisors (see below), whose sum is σ = 493346700. Its totient is φ = 140956176.

The previous prime is 305405053. The next prime is 305405077. The reversal of 305405074 is 470504503.

It can be written as a sum of positive squares in 2 ways, for example, as 303282225 + 2122849 = 17415^2 + 1457^2 .

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

It is not an unprimeable number, because it can be changed into a prime (305405077) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 5873149 + ... + 5873200.

Almost surely, 2^305405074 is an apocalyptic number.

305405074 is a deficient number, since it is larger than the sum of its proper divisors (187941626).

305405074 is a wasteful number, since it uses less digits than its factorization.

305405074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11746364.

The product of its (nonzero) digits is 8400, while the sum is 28.

The square root of 305405074 is about 17475.8425834064. The cubic root of 305405074 is about 673.4294158109.

Adding to 305405074 its reverse (470504503), we get a palindrome (775909577).

The spelling of 305405074 in words is "three hundred five million, four hundred five thousand, seventy-four".