381881050 has 24 divisors (see below), whose sum is σ = 711802656. Its totient is φ = 152429040.

The previous prime is 381881041. The next prime is 381881051. The reversal of 381881050 is 50188183.

It is a junction number, because it is equal to n+sod(n) for n = 381880997 and 381881015.

It is not an unprimeable number, because it can be changed into a prime (381881051) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16509 + ... + 32191.

It is an arithmetic number, because the mean of its divisors is an integer number (29658444).

Almost surely, 2^381881050 is an apocalyptic number.

381881050 is a deficient number, since it is larger than the sum of its proper divisors (329921606).

381881050 is a wasteful number, since it uses less digits than its factorization.

381881050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16182 (or 16177 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 34.

The square root of 381881050 is about 19541.7770430429. Note that the first 3 decimals coincide. The cubic root of 381881050 is about 725.5088302769.

The spelling of 381881050 in words is "three hundred eighty-one million, eight hundred eighty-one thousand, fifty".