308287068 has 24 divisors (see below), whose sum is σ = 720357120. Its totient is φ = 102616560.

The previous prime is 308287051. The next prime is 308287069. The reversal of 308287068 is 860782803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (308287069) 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 7 ways as a sum of consecutive naturals, for example, 9238 + ... + 26493.

It is an arithmetic number, because the mean of its divisors is an integer number (30014880).

Almost surely, 2^308287068 is an apocalyptic number.

It is an amenable number.

308287068 is an abundant number, since it is smaller than the sum of its proper divisors (412070052).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

308287068 is a wasteful number, since it uses less digits than its factorization.

308287068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36457 (or 36455 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 42.

The square root of 308287068 is about 17558.1054786671. The cubic root of 308287068 is about 675.5410882262.

The spelling of 308287068 in words is "three hundred eight million, two hundred eighty-seven thousand, sixty-eight".