238381212 has 12 divisors (see below), whose sum is σ = 556222856. Its totient is φ = 79460400.

The previous prime is 238381211. The next prime is 238381237. The reversal of 238381212 is 212183832.

238381212 is digitally balanced in base 2, 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 (12).

It is an alternating number because its digits alternate between even and odd.

It is a self number, because there is not a number n which added to its sum of digits gives 238381212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238381211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9932539 + ... + 9932562.

Almost surely, 2^238381212 is an apocalyptic number.

It is an amenable number.

238381212 is an abundant number, since it is smaller than the sum of its proper divisors (317841644).

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

238381212 is a wasteful number, since it uses less digits than its factorization.

238381212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19865108 (or 19865106 counting only the distinct ones).

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

The square root of 238381212 is about 15439.5988289852. The cubic root of 238381212 is about 620.0461394730.

The spelling of 238381212 in words is "two hundred thirty-eight million, three hundred eighty-one thousand, two hundred twelve".