381371212 has 24 divisors (see below), whose sum is σ = 673686720. Its totient is φ = 188897280.

The previous prime is 381371197. The next prime is 381371213. The reversal of 381371212 is 212173183.

It is not an unprimeable number, because it can be changed into a prime (381371213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 269964 + ... + 271372.

It is an arithmetic number, because the mean of its divisors is an integer number (28070280).

Almost surely, 2^381371212 is an apocalyptic number.

It is an amenable number.

381371212 is a deficient number, since it is larger than the sum of its proper divisors (292315508).

381371212 is a wasteful number, since it uses less digits than its factorization.

381371212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2001 (or 1999 counting only the distinct ones).

The product of its digits is 2016, while the sum is 28.

The square root of 381371212 is about 19528.7278643541. The cubic root of 381371212 is about 725.1858180860.

The spelling of 381371212 in words is "three hundred eighty-one million, three hundred seventy-one thousand, two hundred twelve".