308003868 has 36 divisors (see below), whose sum is σ = 782931240. Its totient is φ = 102092256.

The previous prime is 308003821. The next prime is 308003869. The reversal of 308003868 is 868300803.

308003868 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×308003868² = 189732765405922848, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (308003869) 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 11 ways as a sum of consecutive naturals, for example, 17455 + ... + 30342.

It is an arithmetic number, because the mean of its divisors is an integer number (21748090).

Almost surely, 2^308003868 is an apocalyptic number.

It is an amenable number.

308003868 is an abundant number, since it is smaller than the sum of its proper divisors (474927372).

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

308003868 is a wasteful number, since it uses less digits than its factorization.

308003868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47986 (or 47981 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 308003868 is about 17550.0389743157. The cubic root of 308003868 is about 675.3341686939.

The spelling of 308003868 in words is "three hundred eight million, three thousand, eight hundred sixty-eight".