383129912 has 32 divisors (see below), whose sum is σ = 802796400. Its totient is φ = 169900800.

The previous prime is 383129911. The next prime is 383129939. The reversal of 383129912 is 219921383.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (383129911) 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, 49487 + ... + 56702.

Almost surely, 2^383129912 is an apocalyptic number.

It is an amenable number.

383129912 is an abundant number, since it is smaller than the sum of its proper divisors (419666488).

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

383129912 is a wasteful number, since it uses less digits than its factorization.

383129912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106247 (or 106243 counting only the distinct ones).

The product of its digits is 23328, while the sum is 38.

The square root of 383129912 is about 19573.7046059248. The cubic root of 383129912 is about 726.2988446070.

The spelling of 383129912 in words is "three hundred eighty-three million, one hundred twenty-nine thousand, nine hundred twelve".