305194066 has 4 divisors (see below), whose sum is σ = 457791102. Its totient is φ = 152597032.

The previous prime is 305194063. The next prime is 305194073. The reversal of 305194066 is 660491503.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 203889841 + 101304225 = 14279^2 + 10065^2 .

It is a super-2 number, since 2×305194066² = 186286835843224712, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (305194063) 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 as a sum of consecutive naturals, namely, 76298515 + ... + 76298518.

Almost surely, 2^305194066 is an apocalyptic number.

305194066 is a deficient number, since it is larger than the sum of its proper divisors (152597036).

305194066 is a wasteful number, since it uses less digits than its factorization.

305194066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152597035.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 305194066 is about 17469.8044064609. The cubic root of 305194066 is about 673.2742866127.

The spelling of 305194066 in words is "three hundred five million, one hundred ninety-four thousand, sixty-six".