308857066 has 16 divisors (see below), whose sum is σ = 531003456. Its totient is φ = 131983776.

The previous prime is 308857049. The next prime is 308857067. The reversal of 308857066 is 660758803.

It is not an unprimeable number, because it can be changed into a prime (308857067) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 26931 + ... + 36646.

It is an arithmetic number, because the mean of its divisors is an integer number (33187716).

Almost surely, 2^308857066 is an apocalyptic number.

308857066 is a deficient number, since it is larger than the sum of its proper divisors (222146390).

308857066 is a wasteful number, since it uses less digits than its factorization.

308857066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63933.

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 308857066 is about 17574.3297453985. The cubic root of 308857066 is about 675.9571722806.

The spelling of 308857066 in words is "three hundred eight million, eight hundred fifty-seven thousand, sixty-six".