308881212 has 48 divisors (see below), whose sum is σ = 741240192. Its totient is φ = 100054080.

The previous prime is 308881187. The next prime is 308881219. The reversal of 308881212 is 212188803.

308881212 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (308881219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107458 + ... + 110294.

It is an arithmetic number, because the mean of its divisors is an integer number (15442504).

Almost surely, 2^308881212 is an apocalyptic number.

It is an amenable number.

308881212 is an abundant number, since it is smaller than the sum of its proper divisors (432358980).

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

308881212 is a wasteful number, since it uses less digits than its factorization.

308881212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3098 (or 3096 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 33.

The square root of 308881212 is about 17575.0166998498. The cubic root of 308881212 is about 675.9747869405.

The spelling of 308881212 in words is "three hundred eight million, eight hundred eighty-one thousand, two hundred twelve".