308387066 has 16 divisors (see below), whose sum is σ = 498551424. Its totient is φ = 142221744.

The previous prime is 308387063. The next prime is 308387071. The reversal of 308387066 is 660783803.

It is not an unprimeable number, because it can be changed into a prime (308387063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36275 + ... + 43961.

It is an arithmetic number, because the mean of its divisors is an integer number (31159464).

Almost surely, 2^308387066 is an apocalyptic number.

308387066 is a deficient number, since it is larger than the sum of its proper divisors (190164358).

308387066 is a wasteful number, since it uses less digits than its factorization.

308387066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9245.

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 308387066 is about 17560.9528784744. The cubic root of 308387066 is about 675.6141212985.

The spelling of 308387066 in words is "three hundred eight million, three hundred eighty-seven thousand, sixty-six".