381866050 has 24 divisors (see below), whose sum is σ = 712807056. Its totient is φ = 152201040.

The previous prime is 381865949. The next prime is 381866057. The reversal of 381866050 is 50668183.

It is not an unprimeable number, because it can be changed into a prime (381866057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 657 + ... + 27643.

It is an arithmetic number, because the mean of its divisors is an integer number (29700294).

Almost surely, 2^381866050 is an apocalyptic number.

381866050 is a deficient number, since it is larger than the sum of its proper divisors (330941006).

381866050 is a wasteful number, since it uses less digits than its factorization.

381866050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27282 (or 27277 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 381866050 is about 19541.3932461327. The cubic root of 381866050 is about 725.4993310057.

The spelling of 381866050 in words is "three hundred eighty-one million, eight hundred sixty-six thousand, fifty".