381283212 has 12 divisors (see below), whose sum is σ = 889660856. Its totient is φ = 127094400.

The previous prime is 381283169. The next prime is 381283249. The reversal of 381283212 is 212382183.

381283212 is digitally balanced in base 3 and base 9, because in such bases 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 (12).

381283212 is strictly pandigital in base 9.

It is a self number, because there is not a number n which added to its sum of digits gives 381283212.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15886789 + ... + 15886812.

Almost surely, 2^381283212 is an apocalyptic number.

It is an amenable number.

381283212 is an abundant number, since it is smaller than the sum of its proper divisors (508377644).

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

381283212 is a wasteful number, since it uses less digits than its factorization.

381283212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31773608 (or 31773606 counting only the distinct ones).

The product of its digits is 4608, while the sum is 30.

The square root of 381283212 is about 19526.4746434168. The cubic root of 381283212 is about 725.1300358114.

The spelling of 381283212 in words is "three hundred eighty-one million, two hundred eighty-three thousand, two hundred twelve".